psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002
\u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
"}, "summary": "\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002", "version": "10", "link_map": {"/zh/docs/10/app-psql.html#APP-PSQL-META-COMMANDS": "/docs/10/app-psql.html#APP-PSQL-META-COMMANDS"}, "body_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002
\u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
", "body_sha256": "9b1fa39be7f2dfffefd010bff15c69300d7f978419ff94088cb454e63cade539", "content_hash": "5e2c44e37f440d78bbae4c798fd487e7b05a75d381fdae862eae1ba844544592", "source_database": "center", "source_revision": "f9301feba91e2e2566038a36b8cee0e4402db68989538f88670fddd20b1f78ea"}, "modifiers": [], "signature": "\\echo text [ ... ]", "spellings": ["\\echo"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-65-63-68-6f/?v=10", "text": "\\echo"}, "modifiers": "\u6b64\u8bed\u6cd5\u7b7e\u540d\u672a\u5217\u51fa"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "description": ["\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002"], "manual_html": "", "manual_path": "app-psql.html#APP-PSQL-META-COMMANDS", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/10/app-psql.html", "method": "same-major semantic node", "sha256": "07e2383663e136e49c565dc43b76b773af4caa89393ce1854d32ec8cc15f2d3c", "language": "zh", "matched_nodes": ["#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[7]/div[1]/h3[0]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[85]/div[3]/p[1]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[85]/p[0]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[85]/p[2]"]}], "language": "zh", "original_text": {"/versions/10/description/0": "Prints the arguments to the standard output, separated by one space and followed by a newline. This can be useful to intersperse information in the output of scripts. For example:", "/versions/10/facts/0/label": "Client", "/versions/10/facts/1/label": "Case-sensitive spelling", "/versions/10/tables/0/title": "Spellings in this manual definition", "/versions/10/related/0/label": "psql command-line options and complete manual", "/versions/10/tables/0/columns/0/label": "Command", "/versions/10/tables/0/columns/1/label": "Documented suffix modifiers", "/versions/10/tables/0/rows/0/modifiers": "None listed in this signature"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "19b3d73e3a1b81b35d73e167276d0089b386996119cd4bf8c4aa99988b12c4f7", "canonical_center_text_hash": "5e2c44e37f440d78bbae4c798fd487e7b05a75d381fdae862eae1ba844544592"}, "description_zh": "\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002", "comparison_data": {"modifiers": [], "signature": "\\echo text [ ... ]", "spellings": ["\\echo"], "definition": "Prints the arguments to the standard output, separated by one space and followed by a newline. This can be useful to intersperse information in the output of scripts. For example: => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 If the first argument is an unquoted -n the trailing newline is not written. Tip If you use the \\o command to redirect your query output you might wish to use \\qecho instead of this command."}, "comparison_hash": "332b556bd19a6e33dbaf6c306a5db2ff1a03973749c5b326979f39ffaf2b6fe7", "manual_language": "zh", "description_zh_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002
\u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
"}, "11": {"facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 11.22"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\echo"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-65-63-68-6f/?v=11", "text": "\\echo"}, "modifiers": "\u6b64\u8bed\u6cd5\u7b7e\u540d\u672a\u5217\u51fa"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\echo", "related": [{"url": "/wiki/tool/psql/?v=11", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2", "label": "11.22", "major": "11", "channel": "historical", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/11/postgresql-11-A4.pdf", "bytes": 13057499, "pages": 2732, "sha256": 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"2072bd2f1b4c80ae112cdc42c0addb5bfc4602cae5ed4721eb615954865d959e", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "53315ddaf3b3f9e6669fd1edc096bbb2cd4a65ea3e836c89e542b43af9ba3a7f"}, "sections": [], "description_zh": "\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002", "description_zh_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
"}, "summary": "\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002", "version": "11", "link_map": {"/zh/docs/11/app-psql.html#APP-PSQL-META-COMMANDS": "/docs/11/app-psql.html#APP-PSQL-META-COMMANDS"}, "body_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
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=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
", "body_sha256": "dae733ea49c03ce45185068f8bdc7fc5031458ac3b0c718b53bd6078956ef666", "content_hash": "dbc1df00840ddc653db4976329802cee6dfb9f43a118a2ab2dd57eae027607a7", "source_database": "center", "source_revision": "53315ddaf3b3f9e6669fd1edc096bbb2cd4a65ea3e836c89e542b43af9ba3a7f"}, "modifiers": [], "signature": "\\echo text [ ... ]", "spellings": ["\\echo"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-65-63-68-6f/?v=11", "text": "\\echo"}, "modifiers": "\u6b64\u8bed\u6cd5\u7b7e\u540d\u672a\u5217\u51fa"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "description": ["\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002"], "manual_html": "", "manual_path": "app-psql.html#APP-PSQL-META-COMMANDS", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/11/app-psql.html", "method": "same-major semantic node", "sha256": "01339254dd1dc30d095af846d0b6a7c01f96338187a6fbb8cf45290d5941196b", "language": "zh", "matched_nodes": ["#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[7]/div[1]/h3[0]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[85]/div[3]/p[1]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[85]/p[0]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[85]/p[2]"]}], "language": "zh", "original_text": {"/versions/11/description/0": "Prints the arguments to the standard output, separated by one space and followed by a newline. This can be useful to intersperse information in the output of scripts. For example:", "/versions/11/facts/0/label": "Client", "/versions/11/facts/1/label": "Case-sensitive spelling", "/versions/11/tables/0/title": "Spellings in this manual definition", "/versions/11/related/0/label": "psql command-line options and complete manual", "/versions/11/tables/0/columns/0/label": "Command", "/versions/11/tables/0/columns/1/label": "Documented suffix modifiers", "/versions/11/tables/0/rows/0/modifiers": "None listed in this signature"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "520c8f7b68c7e74c064f25299723a3fbfbcc10b8f023a80839ad35bea5dfed0d", "canonical_center_text_hash": "dbc1df00840ddc653db4976329802cee6dfb9f43a118a2ab2dd57eae027607a7"}, "description_zh": "\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002", "comparison_data": {"modifiers": [], "signature": "\\echo text [ ... ]", "spellings": ["\\echo"], "definition": "Prints the arguments to the standard output, separated by one space and followed by a newline. This can be useful to intersperse information in the output of scripts. For example: => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 If the first argument is an unquoted -n the trailing newline is not written. Tip If you use the \\o command to redirect your query output you might wish to use \\qecho instead of this command."}, "comparison_hash": "332b556bd19a6e33dbaf6c306a5db2ff1a03973749c5b326979f39ffaf2b6fe7", "manual_language": "zh", "description_zh_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
"}, "12": {"facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 12.22"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\echo"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-65-63-68-6f/?v=12", "text": "\\echo"}, "modifiers": "\u6b64\u8bed\u6cd5\u7b7e\u540d\u672a\u5217\u51fa"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\echo", "related": [{"url": "/wiki/tool/psql/?v=12", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v12.22/postgresql-12.22.tar.bz2", "label": "12.22", "major": "12", "channel": "historical", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/12/postgresql-12-A4.pdf", "bytes": 13424351, "pages": 2803, "sha256": 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"41ef550f50ca6951c8f8aef3f8f026a1f5930b2d11723e91106dab0f8a0d1895", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "7a827e97cbfacd7febff75f34443e2043e40723de5b6d8c9d81a9430b65a37e4"}, "sections": [], "description_zh": "\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002", "description_zh_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
"}, "summary": "\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002", "version": "12", "link_map": {"/zh/docs/12/app-psql.html#APP-PSQL-META-COMMANDS": "/docs/12/app-psql.html#APP-PSQL-META-COMMANDS"}, "body_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
", "body_sha256": "9612efcd65a4b6b9ff8b8fbe3c32dfd32cbe7ab0e778d52c9540db76f96dba2c", "content_hash": "d198e86e104a5a0adc91a8c0c70fdb82bdf903c2fde37fd560fce4a92f20ff2b", "source_database": "center", "source_revision": "7a827e97cbfacd7febff75f34443e2043e40723de5b6d8c9d81a9430b65a37e4"}, "modifiers": [], "signature": "\\echo text [ ... ]", "spellings": ["\\echo"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-65-63-68-6f/?v=12", "text": "\\echo"}, "modifiers": "\u6b64\u8bed\u6cd5\u7b7e\u540d\u672a\u5217\u51fa"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "description": ["\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002"], "manual_html": "", "manual_path": "app-psql.html#APP-PSQL-META-COMMANDS", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/12/app-psql.html", "method": "same-major semantic node", "sha256": "1eb88d17f6ce811d722e5c4ed036f78a7872bf88410c08db794c428e3cfc98ce", "language": "zh", "matched_nodes": ["#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[7]/div[1]/h3[0]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[87]/div[3]/p[1]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[87]/p[0]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[87]/p[2]"]}], "language": "zh", "original_text": {"/versions/12/description/0": "Prints the arguments to the standard output, separated by one space and followed by a newline. This can be useful to intersperse information in the output of scripts. For example:", "/versions/12/facts/0/label": "Client", "/versions/12/facts/1/label": "Case-sensitive spelling", "/versions/12/tables/0/title": "Spellings in this manual definition", "/versions/12/related/0/label": "psql command-line options and complete manual", "/versions/12/tables/0/columns/0/label": "Command", "/versions/12/tables/0/columns/1/label": "Documented suffix modifiers", "/versions/12/tables/0/rows/0/modifiers": "None listed in this signature"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "d8f38d90842ed8a51be73a6576c24df325a46ba8211f4ad86c5315b60a844e0f", "canonical_center_text_hash": "d198e86e104a5a0adc91a8c0c70fdb82bdf903c2fde37fd560fce4a92f20ff2b"}, "description_zh": "\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002", "comparison_data": {"modifiers": [], "signature": "\\echo text [ ... ]", "spellings": ["\\echo"], "definition": "Prints the arguments to the standard output, separated by one space and followed by a newline. This can be useful to intersperse information in the output of scripts. For example: => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 If the first argument is an unquoted -n the trailing newline is not written. Tip If you use the \\o command to redirect your query output you might wish to use \\qecho instead of this command."}, "comparison_hash": "332b556bd19a6e33dbaf6c306a5db2ff1a03973749c5b326979f39ffaf2b6fe7", "manual_language": "zh", "description_zh_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u53c2\u6570\u4e4b\u95f4\u7528\u4e00\u4e2a\u7a7a\u683c\u5206\u9694\uff0c\u672b\u5c3e\u8ddf\u968f\u6362\u884c\u7b26\u3002\u8fd9\u53ef\u7528\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u63d2\u5165\u4fe1\u606f\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u8f93\u51fa\u672b\u5c3e\u7684\u6362\u884c\u7b26\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
"}, "13": {"facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 13.23"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\echo"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-65-63-68-6f/?v=13", "text": "\\echo"}, "modifiers": "\u6b64\u8bed\u6cd5\u7b7e\u540d\u672a\u5217\u51fa"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\echo", "related": [{"url": "/wiki/tool/psql/?v=13", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v13.23/postgresql-13.23.tar.bz2", "label": "13.23", "major": "13", "channel": "historical", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/13/postgresql-13-A4.pdf", "bytes": 13843239, "pages": 2826, "sha256": 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"614ee3133270254e476c118cdf6f72af78d4e4b8bbd9b28ed9ab1e14e4e9c0f6"}, "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 13.23"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\echo"}], "sections": [], "center_zh": {"title": "\\echo", "locale": "zh-Hans", "source": {"key": "cmd-65-63-68-6f", "locale": "zh-Hans", "version": "13", "text_hash": "2c5c8f8c37814c77d4558922a831bbd55e6862b3e42ef2963a4daa787db14997", "collection": "psql", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "614ee3133270254e476c118cdf6f72af78d4e4b8bbd9b28ed9ab1e14e4e9c0f6"}, "payload": {"facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 13.23"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\echo"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-65-63-68-6f/?v=13", "text": "\\echo"}, "modifiers": "\u6b64\u8bed\u6cd5\u7b7e\u540d\u672a\u5217\u51fa"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-identity", "manual": {"url": "/zh/docs/13/app-psql.html#APP-PSQL-META-COMMANDS", "anchor": "APP-PSQL-META-COMMANDS", "locale": "zh-Hans", "version": "13", "build_id": 66, "page_key": "app-psql.html", "extraction": "exact-definition", "source_hash": "a5500221235ed19029b98fb69f0d6465a7bf1d0939420838c240c2cd53b2eca3", "fragment_sha256": "e427ebd2c818d8b58b5907aef280c1f5b6a9fcea5da38d899f15c42ac3f31138", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:a13a825c39f0268ef1cfe9137e283e38d0da73b2d7894f0733c7b26372a4f6a4", "translated_from_revision": null}, "body_sha256": "a98b038e923871b8d31e3180a6c74c4a73290355006ad38bd0bfd2f57768c247", "runtime_rerun": false, "authored_translation": "source-derived-identity", "source_facts_revision": "614ee3133270254e476c118cdf6f72af78d4e4b8bbd9b28ed9ab1e14e4e9c0f6"}, "sections": [], "description_zh": "\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605 \\warn \u3002", "description_zh_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
"}, "summary": "\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605 \\warn \u3002", "version": "13", "link_map": {"/zh/docs/13/app-psql.html#APP-PSQL-META-COMMANDS": "/docs/13/app-psql.html#APP-PSQL-META-COMMANDS"}, "body_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
", "body_sha256": "ad113f227c8bae6f3b3de67565c33fc5e683645e370d23639b71b625f5fd997b", "content_hash": "2c5c8f8c37814c77d4558922a831bbd55e6862b3e42ef2963a4daa787db14997", "source_database": "center", "source_revision": "614ee3133270254e476c118cdf6f72af78d4e4b8bbd9b28ed9ab1e14e4e9c0f6"}, "modifiers": [], "signature": "\\echo text [ ... ]", "spellings": ["\\echo"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-65-63-68-6f/?v=13", "text": "\\echo"}, "modifiers": "\u6b64\u8bed\u6cd5\u7b7e\u540d\u672a\u5217\u51fa"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "description": ["\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605 \\warn \u3002"], "manual_html": "", "manual_path": "app-psql.html#APP-PSQL-META-COMMANDS", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/13/app-psql.html", "method": "same-major semantic node", "sha256": "dd2bf63d81b9a9d3fc69c646197cfdc14a0b1bab1c9f0b98608d66554da4a261", "language": "zh", "matched_nodes": ["#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[7]/div[1]/h3[0]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[95]/div[3]/p[1]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[95]/p[0]", "#APP-PSQL/div[7]/div[3]/div[10]/dl[0]/dd[95]/p[2]"]}], "language": "zh", "original_text": {"/versions/13/description/0": "Prints the evaluated arguments to standard output, separated by spaces and followed by a newline. This can be useful to intersperse information in the output of scripts. For example:", "/versions/13/facts/0/label": "Client", "/versions/13/facts/1/label": "Case-sensitive spelling", "/versions/13/tables/0/title": "Spellings in this manual definition", "/versions/13/related/0/label": "psql command-line options and complete manual", "/versions/13/tables/0/columns/0/label": "Command", "/versions/13/tables/0/columns/1/label": "Documented suffix modifiers", "/versions/13/tables/0/rows/0/modifiers": "None listed in this signature"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "3ed5009b671c37ba3b407a082571a44042ffc0212fa5df8adda50caef7642cac", "canonical_center_text_hash": "2c5c8f8c37814c77d4558922a831bbd55e6862b3e42ef2963a4daa787db14997"}, "description_zh": "\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605 \\warn \u3002", "comparison_data": {"modifiers": [], "signature": "\\echo text [ ... ]", "spellings": ["\\echo"], "definition": "Prints the evaluated arguments to standard output, separated by spaces and followed by a newline. This can be useful to intersperse information in the output of scripts. For example: => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 If the first argument is an unquoted -n the trailing newline is not written (nor is the first argument). Tip If you use the \\o command to redirect your query output you might wish to use \\qecho instead of this command. See also \\warn ."}, "comparison_hash": "1d2032e9f54477cd4983e83ea7169a58bf142fbe610fe1492b3d64f61f90d972", "manual_language": "zh", "description_zh_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
"}, "14": {"lang": "zh", "facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 14.25"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\echo"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-65-63-68-6f/?v=14", "text": "\\echo"}, "modifiers": "\u6b64\u8bed\u6cd5\u7b7e\u540d\u672a\u5217\u51fa"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\echo", "related": [{"url": "/wiki/tool/psql/?v=14", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v14.25/postgresql-14.25.tar.bz2", "label": "14.25", "major": "14", "channel": "stable", "manifest": {"major": "14", "release": "14.25", "source_url": "https://ftp.postgresql.org/pub/source/v14.25/postgresql-14.25.tar.bz2", "source_sha256": "09af980eb3a5d0a8ad7a34b95031b1988bbcd430c87700a62d6234c0ed97ae4c"}, "revision": "3458c6c18c8d4de5bbf0e6a5e72e5d2a815a2604b1cef6d1ec84491c75e57d2f", "evidence_kind": "English manual and source declarations", "source_sha256": "09af980eb3a5d0a8ad7a34b95031b1988bbcd430c87700a62d6234c0ed97ae4c"}, "sources": [{"url": "/docs/14/app-psql.html#APP-PSQL-META-COMMANDS", "file": "app-psql.html", "label": "14.25 English manual \u00b7 app-psql.html", "anchor": "APP-PSQL-META-COMMANDS", "sha256": "ea99b69e21da51aab6382e82434cfb27bfb24f452abe7bbb4b1fb29319f081b0"}], "zh_from": "same-version-manual", "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 14.25"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\echo"}], "sections": [], "center_zh": {"locale": "zh-Hans", "payload": {"description_zh": "\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a", "description_zh_html": "\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
"}, "summary": "\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605 \\warn \u3002", "version": "20", "link_map": {"/zh/docs/devel/app-psql.html#APP-PSQL-META-COMMAND-ECHO": "/docs/devel/app-psql.html#APP-PSQL-META-COMMAND-ECHO"}, "body_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
", "body_sha256": "42b184b29951a52399e861dc74cea288c3b37162845394a2c638085eb325e845", "content_hash": "e2b01f3955db060a9a7a2be84b79eb9c13be7b04900f4e20327f8105db8ebf7b", "source_database": "center", "source_revision": "3cd0885bb4eccdbaac1a21177cc639e9031e54bd8ea6536c45224b5563354ce2"}, "modifiers": [], "signature": "\\echo text [ ... ]", "spellings": ["\\echo"], "tables_zh": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-65-63-68-6f/?v=20", "text": "\\echo"}, "modifiers": "\u6b64\u8bed\u6cd5\u7b7e\u540d\u672a\u5217\u51fa"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "description": ["\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605 \\warn \u3002"], "manual_html": "", "manual_path": "app-psql.html#APP-PSQL-META-COMMAND-ECHO", "sections_zh": [], "localization": {"status": "complete", "sources": [{"url": "/docs/devel/app-psql.html", "method": "same-major semantic node", "sha256": "1590b6e290ad21fe3ac1c1549628841ae426d1cd07a8f808789207878dbee5ab", "language": "zh", "matched_nodes": ["#APP-PSQL/div[7]/div[3]/div[11]/dl[0]/dd[107]/div[3]/p[1]", "#APP-PSQL/div[7]/div[3]/div[11]/dl[0]/dd[107]/p[0]", "#APP-PSQL/div[7]/div[3]/div[11]/dl[0]/dd[107]/p[2]", "#APP-PSQL/div[7]/div[3]/div[11]/dl[0]/dd[11]/div[1]/h3[0]"]}], "language": "zh", "original_text": {"/summary": "Prints the evaluated arguments to standard output, separated by spaces and followed by a newline. This can be useful to intersperse information in the output of scripts. For example:", "/category": "Scripting and assistance", "/versions/20/description/0": "Prints the evaluated arguments to standard output, separated by spaces and followed by a newline. This can be useful to intersperse information in the output of scripts. For example:", "/versions/20/facts/0/label": "Client", "/versions/20/facts/1/label": "Case-sensitive spelling", "/versions/20/tables/0/title": "Spellings in this manual definition", "/versions/20/related/0/label": "psql command-line options and complete manual", "/versions/20/tables/0/columns/0/label": "Command", "/versions/20/tables/0/columns/1/label": "Documented suffix modifiers", "/versions/20/tables/0/rows/0/modifiers": "None listed in this signature"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "7f6c798218c16d04a69b7a806e37ce0eb97d4232839d5a7afe4db3132c2bc273", "canonical_center_text_hash": "e2b01f3955db060a9a7a2be84b79eb9c13be7b04900f4e20327f8105db8ebf7b"}, "description_zh": "\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 \u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n \uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002 \u63d0\u793a \u5982\u679c\u4f7f\u7528 \\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528 \\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605 \\warn \u3002", "comparison_data": {"modifiers": [], "signature": "\\echo text [ ... ]", "spellings": ["\\echo"], "definition": "Prints the evaluated arguments to standard output, separated by spaces and followed by a newline. This can be useful to intersperse information in the output of scripts. For example: => \\echo `date` Tue Oct 26 21:40:57 CEST 1999 If the first argument is an unquoted -n the trailing newline is not written (nor is the first argument). Tip If you use the \\o command to redirect your query output you might wish to use \\qecho instead of this command. See also \\warn ."}, "comparison_hash": "1d2032e9f54477cd4983e83ea7169a58bf142fbe610fe1492b3d64f61f90d972", "manual_language": "zh", "description_zh_html": "psql \u547d\u4ee4 \\echo text [ ... ]\u3002
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
", "source_revalidation": {"kind": "static-same-version-source-and-manual-replay", "audit": "wiki-audit-20261023", "runtime_rerun": false, "compared_fields": "entity membership and source-derived facts; presentation markup normalized", "source_revision": "3cd0885bb4eccdbaac1a21177cc639e9031e54bd8ea6536c45224b5563354ce2", "previous_source_revision": "2eba5e0fd4c3bffb2803247b6cd537878e9d6ee5a6dfbe3c50ece8b421b80918"}}}}, "snapshot": {"lang": "zh", "facts": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 18.7"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\echo"}], "tables": [{"key": "spellings", "rows": [{"command": {"url": "/wiki/psql/cmd-65-63-68-6f/?v=18", "text": "\\echo"}, "modifiers": "\u6b64\u8bed\u6cd5\u7b7e\u540d\u672a\u5217\u51fa"}], "title": "\u672c\u7248\u624b\u518c\u4e2d\u7684\u5199\u6cd5", "columns": [{"key": "command", "label": "\u547d\u4ee4"}, {"key": "modifiers", "label": "\u624b\u518c\u4e2d\u7684\u540e\u7f00\u4fee\u9970\u7b26"}]}], "command": "\\echo", "related": [{"url": "/wiki/tool/psql/?v=18", "label": "psql \u547d\u4ee4\u884c\u9009\u9879\u53ca\u5b8c\u6574\u624b\u518c"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.7/postgresql-18.7.tar.bz2", "label": "18.7", "major": "18", "channel": "stable", "manifest": {"major": "18", "release": "18.7", "source_url": "https://ftp.postgresql.org/pub/source/v18.7/postgresql-18.7.tar.bz2", "source_sha256": "441dfae4280cae3e0425e5f876f80559fb0731c140f1aae22b3e5a54d0411bfd"}, "revision": "1b2d62b4845aa46374f2cb680f95d3392322cc8128646992ae4e18d0e7084915", "evidence_kind": "English manual and source declarations", "source_sha256": "441dfae4280cae3e0425e5f876f80559fb0731c140f1aae22b3e5a54d0411bfd"}, "sources": [{"url": "/docs/18/app-psql.html#APP-PSQL-META-COMMAND-ECHO", "file": "app-psql.html", "label": "18.7 English manual \u00b7 app-psql.html", "anchor": "APP-PSQL-META-COMMAND-ECHO", "sha256": "af50448485df02bdef2b72b8347192ba029c7082b8d0392ecb17db44ad533aaf"}], "zh_from": "same-version-manual", "facts_zh": [{"label": "\u5ba2\u6237\u7aef", "value": "psql 18.7"}, {"label": "\u533a\u5206\u5927\u5c0f\u5199\u7684\u5199\u6cd5", "value": "\\echo"}], "sections": [], "center_zh": {"locale": "zh-Hans", "payload": {"description_zh": "\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a", "description_zh_html": "\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
\n=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n
\u5c06\u6c42\u503c\u540e\u7684\u53c2\u6570\u6253\u5370\u5230\u6807\u51c6\u8f93\u51fa\uff0c\u7528\u7a7a\u683c\u5206\u9694\uff0c\u5e76\u5728\u672b\u5c3e\u52a0\u4e0a\u6362\u884c\u7b26\u3002\u8fd9\u5bf9\u4e8e\u5728\u811a\u672c\u8f93\u51fa\u4e2d\u7a7f\u63d2\u4fe1\u606f\u5f88\u6709\u7528\u3002\u4f8b\u5982\uff1a
=> \\echo `date`\nTue Oct 26 21:40:57 CEST 1999\n\u5982\u679c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u672a\u52a0\u5f15\u53f7\u7684 -n\uff0c\u5219\u4e0d\u4f1a\u5199\u5165\u5c3e\u968f\u7684\u6362\u884c\u7b26\uff08\u4e5f\u4e0d\u4f1a\u5199\u5165\u7b2c\u4e00\u4e2a\u53c2\u6570\uff09\u3002
\n \u5982\u679c\u4f7f\u7528\\o \u547d\u4ee4\u91cd\u5b9a\u5411\u67e5\u8be2\u8f93\u51fa\uff0c\u53ef\u80fd\u4f1a\u60f3\u7528\\qecho \u4ee3\u66ff\u8fd9\u4e2a\u547d\u4ee4\u3002\u53e6\u8bf7\u53c2\u9605\\warn\u3002\n