{"id":112988,"date":"2026-10-05T10:57:35","date_gmt":"2026-10-05T02:57:35","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/112988.html"},"modified":"2026-10-05T10:57:35","modified_gmt":"2026-10-05T02:57:35","slug":"linux%e5%91%bd%e4%bb%a4%e5%85%a5%e9%97%a81","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/112988.html","title":{"rendered":"Linux\u547d\u4ee4\u5165\u95e81"},"content":{"rendered":"<h2 style=\"background-color:transparent\">\u53ef\u4ee3\u66ffcat<br \/>\n\u00a0<\/h2>\n<h3>tac:<\/h3>\n<p>tac \u662f Linux \u4e0b\u7684\u4e00\u4e2a\u6709\u8da3\u547d\u4ee4\u3002\u5b83\u548c cat \u7c7b\u4f3c&#xff0c;\u4f46\u4f1a\u5c06\u6587\u4ef6\u5185\u5bb9\u7684\u6bcf\u4e00\u884c\u5012\u5e8f\u8f93\u51fa&#xff0c;\u6700\u540e\u4e00\u884c\u4f1a\u663e\u793a\u5728\u7b2c\u4e00\u884c\u3002\u6bd4\u5982&#xff1a;tac \/tmp\/flag.txt<br \/>\n\u6709\u65f6\u5019\u5982\u679c\u670d\u52a1\u4e0d\u5141\u8bb8 cat \u547d\u4ee4&#xff0c;\u653b\u51fb\u8005\u4f1a\u5c1d\u8bd5\u7528 tac&#xff0c;\u56e0\u4e3a tac \u5b9e\u9645\u4e0a\u4e5f\u53ef\u4ee5\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9&#xff0c;\u5e38\u7528\u4e8e\u7ed5\u8fc7\u5bf9 cat \u547d\u4ee4\u7684\u9650\u5236\u3002<\/p>\n<\/p>\n<h3>head:<\/h3>\n<p>head \u662f Linux \u4e0b\u7528\u4e8e\u67e5\u770b\u6587\u4ef6\u5f00\u5934\u5185\u5bb9\u7684\u547d\u4ee4&#xff0c;\u9ed8\u8ba4\u663e\u793a\u524d 10 \u884c\u3002\u6bd4\u5982&#xff1a;head \/etc\/passwd \u4f1a\u8f93\u51fa\u6587\u4ef6\u7684\u524d 10 \u884c\u3002<br \/>\n\u5728\u5b89\u5168\u5b9e\u8df5\u4e2d&#xff0c;head \u53ef\u4ee5\u7528\u6765\u5feb\u901f\u68c0\u67e5\u5927\u6587\u4ef6\u7684\u4e00\u90e8\u5206&#xff0c;\u6216\u8005\u7ed5\u8fc7\u5bf9\u67d0\u4e9b\u547d\u4ee4&#xff08;\u5982 cat&#xff09;\u7684\u9650\u5236\u3002\u653b\u51fb\u8005\u6709\u65f6\u4f1a\u7528 head \u6765\u8bfb\u53d6\u654f\u611f\u6587\u4ef6\u7684\u5f00\u5934\u5185\u5bb9\u3002<\/p>\n<\/p>\n<h3>tail:<\/h3>\n<p>tail \u662f Linux \u4e0b\u7528\u4e8e\u67e5\u770b\u6587\u4ef6\u672b\u5c3e\u5185\u5bb9\u7684\u547d\u4ee4&#xff0c;\u9ed8\u8ba4\u663e\u793a\u6700\u540e 10 \u884c\u3002\u6bd4\u5982&#xff1a;tail \/etc\/passwd \u4f1a\u8f93\u51fa\u6587\u4ef6\u7684\u6700\u540e 10 \u884c\u3002<br \/>\n\u5728\u5b89\u5168\u5b9e\u8df5\u4e2d&#xff0c;tail \u53ef\u4ee5\u7528\u6765\u5feb\u901f\u68c0\u67e5\u65e5\u5fd7\u7684\u6700\u65b0\u5185\u5bb9&#xff0c;\u6216\u8005\u8bfb\u53d6\u5927\u6587\u4ef6\u7684\u672b\u7aef\u3002\u653b\u51fb\u8005\u6709\u65f6\u4f1a\u7528 tail \u6765\u83b7\u53d6\u654f\u611f\u6587\u4ef6\u7684\u7ed3\u5c3e\u4fe1\u606f&#xff0c;\u4ee5\u7ed5\u8fc7\u5bf9\u90e8\u5206\u5185\u5bb9\u7684\u8bfb\u53d6\u9650\u5236\u3002<\/p>\n<\/p>\n<h3>more:<\/h3>\n<p>more \u662f\u53e6\u5916\u4e00\u4e2a\u5e38\u7528\u7684\u6587\u4ef6\u67e5\u770b\u547d\u4ee4&#xff0c;\u53ef\u4ee5\u5206\u9875\u6d4f\u89c8\u5185\u5bb9\u3002\u5f53\u6587\u4ef6\u5185\u5bb9\u592a\u957f\u65f6&#xff0c;\u4f7f\u7528 more \/etc\/passwd \u53ef\u4ee5\u4e00\u9875\u4e00\u9875\u5730\u67e5\u770b&#xff0c;\u975e\u5e38\u9002\u5408\u9605\u8bfb\u5927\u6587\u4ef6\u3002\u6309\u4e0b\u7a7a\u683c\u53ef\u4ee5\u7ffb\u5230\u4e0b\u4e00\u9875&#xff0c;\u6309\u4e0b q \u53ef\u4ee5\u9000\u51fa\u67e5\u770b\u3002<br \/>\n\u5728\u5b89\u5168\u5b9e\u8df5\u4e2d&#xff0c;tail \u5e38\u7528\u6765\u5feb\u901f\u68c0\u67e5\u65e5\u5fd7\u6216\u6587\u4ef6\u6700\u65b0\u5185\u5bb9&#xff0c;\u800c more \u5219\u5e38\u7528\u4e8e\u8f83\u957f\u6587\u4ef6\u7684\u5185\u5bb9\u67e5\u770b\u548c\u6d4f\u89c8\u3002\u653b\u51fb\u8005\u6709\u65f6\u4f1a\u901a\u8fc7 tail \u6216 more \u6765\u8bfb\u53d6\u654f\u611f\u6587\u4ef6&#xff0c;\u4ee5\u7ed5\u8fc7\u67d0\u4e9b\u8bfb\u53d6\u9650\u5236\u3002<\/p>\n<\/p>\n<h3>less:<\/h3>\n<p>less \u662f\u4e00\u4e2a\u9ad8\u7ea7\u6587\u4ef6\u5206\u9875\u67e5\u770b\u547d\u4ee4&#xff0c;\u4e0e more \u7c7b\u4f3c&#xff0c;\u4f46\u529f\u80fd\u66f4\u5f3a\u5927\u3002\u4f7f\u7528 less \/etc\/passwd \u53ef\u4ee5\u9ad8\u6548\u9605\u8bfb\u5927\u6587\u4ef6&#xff0c;\u652f\u6301\u5411\u4e0a\u548c\u5411\u4e0b\u7ffb\u9875&#xff08;\u7528\u4e0a\u4e0b\u7bad\u5934\u6216 PageUp\/PageDown&#xff09;&#xff0c;\u6309 q \u9000\u51fa\u3002less \u652f\u6301\u5185\u5bb9\u641c\u7d22&#xff08;\u4f7f\u7528 \/ \u8f93\u5165\u5173\u952e\u8bcd&#xff09;\u548c\u66f4\u7075\u6d3b\u7684\u6eda\u52a8\u65b9\u5f0f\u3002<br \/>\n\u5728\u5b89\u5168\u5b9e\u8df5\u4e2d&#xff0c;\u653b\u51fb\u8005\u6709\u65f6\u4f1a\u901a\u8fc7 less \u53bb\u67e5\u770b\u654f\u611f\u6587\u4ef6&#xff0c;\u56e0\u4e3a\u5b83\u6bd4 more \u66f4\u6613\u4e8e\u6d4f\u89c8\u548c\u67e5\u627e\u5173\u952e\u4fe1\u606f&#xff0c;\u6709\u4e9b\u8fc7\u6ee4\u63aa\u65bd\u53ef\u80fd\u53ea\u9632\u4f4f\u4e86 cat or more \u6307\u4ee4&#xff0c;\u5374\u5ffd\u7565\u4e86 less\u3002<\/p>\n<\/p>\n<h3>nl:<\/h3>\n<p>nl \u547d\u4ee4\u7528\u4e8e\u4e3a\u6587\u4ef6\u4e2d\u7684\u6bcf\u4e00\u884c\u52a0\u4e0a\u884c\u53f7&#xff0c;\u8f93\u51fa\u65f6\u66f4\u52a0\u6e05\u6670\u6709\u5e8f\u3002\u57fa\u672c\u7528\u6cd5\u4e3a nl filename&#xff0c;\u53ef\u4ee5\u770b\u5230\u6bcf\u4e00\u884c\u524d\u9762\u90fd\u6709\u7f16\u53f7\u3002<br \/>\n\u5728\u5b89\u5168\u6d4b\u8bd5\u4e2d&#xff0c;nl \u4e00\u4e9b\u8fc7\u6ee4\u53ea\u9650\u5236 cat\u3001head \u7b49\u547d\u4ee4\u7684\u573a\u666f\u4e0b&#xff0c;\u653b\u51fb\u8005\u53ef\u80fd\u7ed5\u8fc7\u8fc7\u6ee4\u7528 nl \u6765\u67e5\u770b\u654f\u611f\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n<\/p>\n<h3>sort:<\/h3>\n<p>sort \u547d\u4ee4\u7528\u4e8e\u5bf9\u6587\u672c\u5185\u5bb9\u8fdb\u884c\u6392\u5e8f&#xff0c;\u4f7f\u8f93\u51fa\u5185\u5bb9\u6309\u7167\u7279\u5b9a\u89c4\u5219\u6709\u5e8f\u6392\u5217\u3002\u57fa\u672c\u7528\u6cd5\u4e3a sort filename&#xff0c;\u53ef\u4ee5\u5c06\u6587\u4ef6\u5185\u5bb9\u6309\u884c\u6392\u5e8f\u8f93\u51fa\u3002<br \/>\n\u5728\u5b89\u5168\u6d4b\u8bd5\u4e2d&#xff0c;\u5982\u679c cat\u3001head \u7b49\u547d\u4ee4\u88ab\u8fc7\u6ee4&#xff0c;\u653b\u51fb\u8005\u53ef\u80fd\u4f7f\u7528 sort \u547d\u4ee4\u6765\u8bfb\u53d6\u5e76\u95f4\u63a5\u67e5\u770b\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n<\/p>\n<h3>uniq:<\/h3>\n<p>uniq \u547d\u4ee4\u7528\u4e8e\u53bb\u9664\u6587\u672c\u4e2d\u7684\u91cd\u590d\u884c&#xff0c;\u53ea\u4fdd\u7559\u552f\u4e00\u7684\u5185\u5bb9\u3002\u57fa\u672c\u7528\u6cd5\u4e3a uniq filename&#xff0c;\u901a\u5e38\u4e0e sort \u547d\u4ee4\u7ed3\u5408\u4f7f\u7528\u4ee5\u786e\u4fdd\u76f8\u90bb\u91cd\u590d\u884c\u80fd\u88ab\u8bc6\u522b\u548c\u79fb\u9664\u3002<br \/>\n\u5728\u5b89\u5168\u6d4b\u8bd5\u4e2d&#xff0c;uniq \u53ef\u80fd\u88ab\u7528\u4f5c\u66ff\u4ee3 cat\u3001head \u7b49\u547d\u4ee4&#xff0c;\u5e2e\u52a9\u653b\u51fb\u8005\u6574\u7406\u548c\u67e5\u770b\u6587\u4ef6\u4e2d\u7684\u552f\u4e00\u4fe1\u606f\u3002<\/p>\n<\/p>\n<h3>cp:<\/h3>\n<p>cp \u547d\u4ee4\u7528\u4e8e\u62f7\u8d1d\u6587\u4ef6\u6216\u76ee\u5f55\u3002\u53ef\u4ee5\u5c06\u4e00\u4e2a\u6216\u591a\u4e2a\u6e90\u6587\u4ef6\u590d\u5236\u5230\u76ee\u6807\u8def\u5f84&#xff0c;\u5e38\u89c1\u7528\u6cd5\u5305\u62ec cp \u6e90\u6587\u4ef6 \u76ee\u6807\u6587\u4ef6&#xff08;\u62f7\u8d1d\u5355\u4e2a\u6587\u4ef6&#xff09;\u548c cp -r \u6e90\u76ee\u5f55 \u76ee\u6807\u76ee\u5f55&#xff08;\u9012\u5f52\u62f7\u8d1d\u6574\u4e2a\u76ee\u5f55&#xff09;\u3002<br \/>\n\u5728\u65e5\u5e38\u8fd0\u7ef4\u548c\u5b89\u5168\u6d4b\u8bd5\u4e2d&#xff0c;cp \u5e38\u7528\u4e8e\u6587\u4ef6\u5907\u4efd\u3001\u6062\u590d\u3001\u6279\u91cf\u590d\u5236\u7b49\u64cd\u4f5c&#xff0c;\u4e5f\u662f\u6392\u67e5\u548c\u5229\u7528\u6587\u4ef6\u76f8\u5173\u6f0f\u6d1e\u65f6\u7ecf\u5e38\u7528\u5230\u7684\u5de5\u5177\u3002<\/p>\n<p>cp \/tmp\/flag.txt \/dev\/stdout<\/p>\n<p>\u2022\u00a0\u00a0 \u00a0\/dev\/stdout \u8868\u793a\u6807\u51c6\u8f93\u51fa&#xff08;\u7ec8\u7aef\u5c4f\u5e55&#xff09;\u3002<\/p>\n<p>\u2022\u00a0\u00a0 \u00a0\u6240\u4ee5 cp file \/dev\/stdout &#061; \u201c\u590d\u5236\u6587\u4ef6\u5230\u5c4f\u5e55\u201d&#xff0c;\u00a0\u7c7b\u4f3c cat file \u7684\u6548\u679c\u3002<br \/>\n\u00a0<\/p>\n<h3>mv:<\/h3>\n<p>mv \u547d\u4ee4\u7528\u4e8e\u79fb\u52a8&#xff08;\u91cd\u547d\u540d&#xff09;\u6587\u4ef6\u6216\u76ee\u5f55\u3002\u53ef\u4ee5\u5c06\u4e00\u4e2a\u6216\u591a\u4e2a\u6e90\u6587\u4ef6\u6216\u76ee\u5f55\u79fb\u52a8\u5230\u6307\u5b9a\u76ee\u6807\u8def\u5f84&#xff0c;\u5e38\u89c1\u7528\u6cd5\u5305\u62ec mv \u6e90\u6587\u4ef6 \u76ee\u6807\u6587\u4ef6&#xff08;\u91cd\u547d\u540d\u6587\u4ef6\u6216\u79fb\u52a8\u6587\u4ef6\u5230\u5176\u5b83\u4f4d\u7f6e&#xff09;&#xff0c;\u4ee5\u53ca mv \u6e90\u76ee\u5f55 \u76ee\u6807\u76ee\u5f55&#xff08;\u79fb\u52a8\u6216\u91cd\u547d\u540d\u76ee\u5f55&#xff09;\u3002<br \/>\n\u5728\u65e5\u5e38\u8fd0\u7ef4\u548c\u5b89\u5168\u6d4b\u8bd5\u4e2d&#xff0c;mv \u5e38\u7528\u4e8e\u6574\u7406\u6587\u4ef6\u3001\u91cd\u547d\u540d\u654f\u611f\u6587\u4ef6\u3001\u8fc1\u79fb\u76ee\u5f55\u7ed3\u6784\u7b49\u64cd\u4f5c&#xff0c;\u4e5f\u662f\u6587\u4ef6\u7ba1\u7406\u548c\u6392\u67e5\u8fc7\u7a0b\u4e2d\u7ecf\u5e38\u4f7f\u7528\u7684\u5de5\u5177\u3002<br \/>\n\u66ff\u4ee3\u65b9\u6cd5\u662f\u628aflag\u6587\u4ef6\u79fb\u52a8\u5230\u53ef\u67e5\u770b\u7684\u4f4d\u7f6e\u3002\u4e3e\u4f8b\u6765\u8bf4&#xff0c;Web \u6839\u76ee\u5f55\u5c31\u662f\u7f51\u7ad9\u5bf9\u5916\u516c\u5f00\u7684\u6587\u4ef6\u5939&#xff0c;URL \u8def\u5f84\u4f1a\u6620\u5c04\u5230\u8fd9\u4e2a\u6587\u4ef6\u5939\u3002\u628a \/tmp\/flag.txt \u79fb\u52a8\u5230 \/var\/www\/html\/ \u540e&#xff0c;\u6587\u4ef6\u5c31\u8fdb\u5165\u4e86\u7f51\u7ad9\u7684\u201c\u524d\u53f0\u201d&#xff0c;\u6d4f\u89c8\u5668\u8bbf\u95ee \/flag.txt \u5c31\u80fd\u8ba9 Web \u670d\u52a1\u5668\u628a\u5b83\u8bfb\u51fa\u6765\u3002<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53ef\u4ee3\u66ffcattac:tac \u662f Linux \u4e0b\u7684\u4e00\u4e2a\u6709\u8da3\u547d\u4ee4\u3002\u5b83\u548c cat \u7c7b\u4f3c&#xff0c;\u4f46\u4f1a\u5c06\u6587\u4ef6\u5185\u5bb9\u7684\u6bcf\u4e00\u884c\u5012\u5e8f\u8f93\u51fa&#xff0c;\u6700\u540e\u4e00\u884c\u4f1a\u663e\u793a\u5728\u7b2c\u4e00\u884c\u3002\u6bd4\u5982&#xff1a;tac \/tmp\/flag.txt<br \/>\n\u6709\u65f6\u5019\u5982\u679c\u670d\u52a1\u4e0d\u5141\u8bb8 cat \u547d\u4ee4&#xff0c;\u653b\u51fb\u8005\u4f1a\u5c1d\u8bd5\u7528 tac&#xff0c;\u56e0\u4e3a tac \u5b9e\u9645\u4e0a\u4e5f\u53ef\u4ee5\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9&#xff0c;\u5e38\u7528\u4e8e\u7ed5\u8fc7\u5bf9 cat \u547d\u4ee4\u7684\u9650\u5236\u3002head:head \u662f Linux 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content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux\u547d\u4ee4\u5165\u95e81 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u53ef\u4ee3\u66ffcattac:tac \u662f Linux \u4e0b\u7684\u4e00\u4e2a\u6709\u8da3\u547d\u4ee4\u3002\u5b83\u548c cat \u7c7b\u4f3c&#xff0c;\u4f46\u4f1a\u5c06\u6587\u4ef6\u5185\u5bb9\u7684\u6bcf\u4e00\u884c\u5012\u5e8f\u8f93\u51fa&#xff0c;\u6700\u540e\u4e00\u884c\u4f1a\u663e\u793a\u5728\u7b2c\u4e00\u884c\u3002\u6bd4\u5982&#xff1a;tac \/tmp\/flag.txt \u6709\u65f6\u5019\u5982\u679c\u670d\u52a1\u4e0d\u5141\u8bb8 cat \u547d\u4ee4&#xff0c;\u653b\u51fb\u8005\u4f1a\u5c1d\u8bd5\u7528 tac&#xff0c;\u56e0\u4e3a tac \u5b9e\u9645\u4e0a\u4e5f\u53ef\u4ee5\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9&#xff0c;\u5e38\u7528\u4e8e\u7ed5\u8fc7\u5bf9 cat \u547d\u4ee4\u7684\u9650\u5236\u3002head:head \u662f Linux \u4e0b\u7528\u4e8e\u67e5\u770b\u6587\u4ef6\u5f00\u5934\u5185\u5bb9\u7684\u547d\u4ee4&#xff0c;\u9ed8\" \/>\n<meta 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