{"id":27576,"date":"2025-04-19T20:16:23","date_gmt":"2025-04-19T12:16:23","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/27576.html"},"modified":"2025-04-19T20:16:23","modified_gmt":"2025-04-19T12:16:23","slug":"sed%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/27576.html","title":{"rendered":"sed\u8be6\u89e3"},"content":{"rendered":"<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"%E4%B8%80.sed%E6%98%AF%E4%BB%80%E4%B9%88-toc\" style=\"margin-left:0px\">\u4e00.sed\u662f\u4ec0\u4e48<\/p>\n<p id=\"%E4%BA%8C.sed%E7%9A%84%E5%8E%9F%E7%90%86-toc\" style=\"margin-left:0px\">\u4e8c.sed\u7684\u539f\u7406<\/p>\n<p id=\"%E4%B8%89.sed%E7%9A%84%E5%B8%B8%E7%94%A8%E6%93%8D%E4%BD%9C%E9%80%89%E9%A1%B9-toc\" style=\"margin-left:0px\">\u4e09.sed\u7684\u5e38\u7528\u64cd\u4f5c\u9009\u9879<\/p>\n<p id=\"%E5%9B%9B.sed%E7%9A%84%E7%94%A8%E6%B3%95-toc\" style=\"margin-left:0px\">\u56db.sed\u7684\u7528\u6cd5<\/p>\n<p 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style=\"background-color:transparent\">\u4e8c.sed\u7684\u539f\u7406<\/h2>\n<p>\u524d\u63d0&#xff1a;\u9996\u5148\u5bf9\u4e8e\u4e00\u4e2a\u6587\u672c\u6587\u4ef6\u6765\u8bf4&#xff0c;\u5b83\u662f\u7531\u81f3\u4e0a\u800c\u4e0b\u7684\u4e00\u884c\u6216N\u884c\u7ec4\u6210\u3002<\/p>\n<ul>\n<li>1\u3001\u5f53\u7528sed\u547d\u4ee4\u5bf9\u6587\u672c\u8fdb\u884c\u5904\u7406\u7684\u65f6\u5019&#xff0c;sed\u5148\u8bfb\u53d6\u5bf9\u8c61\u7684\u6587\u672c\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\u5230\u6a21\u5f0f\u7a7a\u95f4\u4e2d\u3002<\/li>\n<li>2\u3001\u5f53\u6709\u5185\u5bb9\u8fdb\u5165\u201c\u6a21\u5f0f\u7a7a\u95f4\u201d\u65f6&#xff0c;sed\u7684\u7f16\u8f91\u547d\u4ee4\u5bf9\u6a21\u5f0f\u7a7a\u95f4\u4e2d\u7684\u5185\u5bb9\u8fdb\u884c\u7f16\u8f91\u64cd\u4f5c&#xff08;\u4fee\u6539&#xff0c;\u66ff\u6362&#xff0c;\u5220\u9664&#xff0c;\u8ffd\u52a0&#xff0c;\u663e\u793a\u7b49\u7b49&#xff09;<\/li>\n<li>3\u3001\u6a21\u5f0f\u7a7a\u95f4\u4e2d\u7684\u5185\u5bb9\u7f16\u8f91\u5904\u7406\u5b8c\u6210\u4e4b\u540e&#xff0c;sed\u628a\u6b64\u5185\u5bb9\u901a\u8fc7\u6807\u51c6\u8f93\u51fa&#xff08;\u9ed8\u8ba4\u4e3a\u663e\u793a\u5668&#xff09;\u6253\u5370\u51fa\u6765&#xff0c;\u5e76\u5220\u9664\u6a21\u5f0f\u7a7a\u95f4\u4e2d\u7684\u5185\u5bb9\u3002<\/li>\n<li>4\u3001\u7b2c\u4e00\u884c\u5904\u7406\u7ed3\u675f\u3002\u4ece\u65b0\u8bfb\u53d6\u7b2c\u4e8c\u884c\u7684\u5185\u5bb9\u8fdb\u884c\u5904\u7406&#xff0c;\u76f4\u5230\u6700\u540e\u4e00\u884c\u3002<\/li>\n<\/ul>\n<h2 style=\"background-color:transparent\">\u4e09.sed\u5e38\u7528\u64cd\u4f5c\u9009\u9879<\/h2>\n<p>sed\u547d\u4ee4&#xff1a;<\/p>\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\">\n<tbody>\n<tr>\n<td>\u00a0\u547d\u4ee4<\/td>\n<td>\u00a0\u529f\u80fd<\/td>\n<\/tr>\n<tr>\n<td>\u00a0a\\\\<\/td>\n<td>\n<p>\u00a0\u5728\u5f53\u524d\u884c\u540e\u6dfb\u52a0\u4e00\u884c\u6216\u591a\u884c\u3002\u591a\u884c\u65f6\u9664\u6700\u540e\u4e00\u884c\u5916&#xff0c;\u6bcf\u884c\u672b\u5c3e\u9700\u7528\u201c\\\\\u201d\u7eed\u884c<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\u00a0c\\\\<\/td>\n<td>\u00a0\u7528\u6b64\u7b26\u53f7\u540e\u7684\u65b0\u6587\u672c\u66ff\u6362\u5f53\u524d\u884c\u4e2d\u7684\u6587\u672c\u3002\u591a\u884c\u65f6\u9664\u6700\u540e\u4e00\u884c\u5916&#xff0c;\u6bcf\u884c\u672b\u5c3e\u9700\u7528&#034;\\\\&#034;\u7eed\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0i\\\\<\/td>\n<td>\u00a0\u5728\u5f53\u524d\u884c\u4e4b\u524d\u63d2\u5165\u6587\u672c\u3002\u591a\u884c\u65f6\u9664\u6700\u540e\u4e00\u884c\u5916&#xff0c;\u6bcf\u884c\u672b\u5c3e\u9700\u7528&#034;\\\\&#034;\u7eed\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0d<\/td>\n<td>\u00a0\u5220\u9664\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0h<\/td>\n<td>\u00a0\u628a\u6a21\u5f0f\u7a7a\u95f4\u91cc\u7684\u5185\u5bb9\u590d\u5236\u5230\u6682\u5b58\u7f13\u51b2\u533a<\/td>\n<\/tr>\n<tr>\n<td>\u00a0H<\/td>\n<td>\u00a0\u628a\u6a21\u5f0f\u7a7a\u95f4\u91cc\u7684\u5185\u5bb9\u8ffd\u52a0\u5230\u6682\u5b58\u7f13\u51b2\u533a<\/td>\n<\/tr>\n<tr>\n<td>\u00a0g<\/td>\n<td>\u00a0\u628a\u6682\u5b58\u7f13\u51b2\u533a\u91cc\u7684\u5185\u5bb9\u590d\u5236\u5230\u6a21\u5f0f\u7a7a\u95f4&#xff0c;\u8986\u76d6\u539f\u6709\u7684\u5185\u5bb9<\/td>\n<\/tr>\n<tr>\n<td>\u00a0G<\/td>\n<td>\u00a0\u628a\u6682\u5b58\u7f13\u51b2\u533a\u7684\u5185\u5bb9\u8ffd\u52a0\u5230\u6a21\u5f0f\u7a7a\u95f4\u91cc&#xff0c;\u8ffd\u52a0\u5728\u539f\u6709\u5185\u5bb9\u7684\u540e\u9762<\/td>\n<\/tr>\n<tr>\n<td>\u00a0l<\/td>\n<td>\u00a0\u5217\u51fa\u975e\u6253\u5370\u5b57\u7b26<\/td>\n<\/tr>\n<tr>\n<td>\u00a0p<\/td>\n<td>\u00a0\u6253\u5370\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0n<\/td>\n<td>\u00a0\u8bfb\u5165\u4e0b\u4e00\u8f93\u5165\u884c&#xff0c;\u5e76\u4ece\u4e0b\u4e00\u6761\u547d\u4ee4\u800c\u4e0d\u662f\u7b2c\u4e00\u6761\u547d\u4ee4\u5f00\u59cb\u5bf9\u5176\u7684\u5904\u7406<\/td>\n<\/tr>\n<tr>\n<td>\u00a0q<\/td>\n<td>\u00a0\u7ed3\u675f\u6216\u9000\u51fased<\/td>\n<\/tr>\n<tr>\n<td>\u00a0r<\/td>\n<td>\u00a0\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u8f93\u5165\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0!<\/td>\n<td>\u00a0\u5bf9\u6240\u9009\u884c\u4ee5\u5916\u7684\u6240\u6709\u884c\u5e94\u7528\u547d\u4ee4<\/td>\n<\/tr>\n<tr>\n<td>\u00a0s<\/td>\n<td>\u00a0\u7528\u4e00\u4e2a\u5b57\u7b26\u4e32\u66ff\u6362\u53e6\u4e00\u4e2a<\/td>\n<\/tr>\n<tr>\n<td>\u00a0g<\/td>\n<td>\u00a0\u5728\u884c\u5185\u8fdb\u884c\u5168\u5c40\u66ff\u6362<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a0w<\/td>\n<td>\u00a0\u5c06\u6240\u9009\u7684\u884c\u5199\u5165\u6587\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>\u00a0x<\/td>\n<td>\u00a0\u4ea4\u6362\u6682\u5b58\u7f13\u51b2\u533a\u4e0e\u6a21\u5f0f\u7a7a\u95f4\u7684\u5185\u5bb9<\/td>\n<\/tr>\n<tr>\n<td>\u00a0y<\/td>\n<td>\u00a0\u5c06\u5b57\u7b26\u66ff\u6362\u4e3a\u53e6\u4e00\u5b57\u7b26&#xff08;\u4e0d\u80fd\u5bf9\u6b63\u5219\u8868\u8fbe\u5f0f\u4f7f\u7528y\u547d\u4ee4&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>sed\u9009\u9879&#xff1a;<\/p>\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\">\n<tbody>\n<tr>\n<td>\u00a0\u9009\u9879<\/td>\n<td>\u00a0\u529f\u80fd<\/td>\n<\/tr>\n<tr>\n<td>\u00a0-e<\/td>\n<td>\u00a0\u8fdb\u884c\u591a\u9879\u7f16\u8f91&#xff0c;\u5373\u5bf9\u8f93\u5165\u884c\u5e94\u7528\u591a\u6761sed\u547d\u4ee4\u65f6\u4f7f\u7528<\/td>\n<\/tr>\n<tr>\n<td>\u00a0-n<\/td>\n<td>\u00a0\u53d6\u6d88\u9ed8\u8ba4\u7684\u8f93\u51fa<\/td>\n<\/tr>\n<tr>\n<td>\u00a0-f<\/td>\n<td>\u00a0\u6307\u5b9ased\u811a\u672c\u7684\u6587\u4ef6\u540d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u9000\u51fa\u72b6\u6001<\/p>\n<p>sed\u4e0d\u5411grep\u4e00\u6837&#xff0c;\u4e0d\u7ba1\u662f\u5426\u627e\u5230\u6307\u5b9a\u7684\u6a21\u5f0f&#xff0c;\u5b83\u7684\u9000\u51fa\u72b6\u6001\u90fd\u662f0\u3002\u53ea\u6709\u5f53\u547d\u4ee4\u5b58\u5728\u8bed\u6cd5\u9519\u8bef\u65f6&#xff0c;sed\u7684\u9000\u51fa\u72b6\u6001\u624d\u4e0d\u662f0\u3002<\/p>\n<p>\u00a0<\/p>\n<hr 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cellspacing=\"1\">\n<tbody>\n<tr>\n<td>\u00a0\u5143\u5b57\u7b26<\/td>\n<td>\u00a0\u529f\u80fd<\/td>\n<td>\u00a0\u793a\u4f8b<\/td>\n<\/tr>\n<tr>\n<td>\u00a0^<\/td>\n<td>\u00a0\u884c\u9996\u5b9a\u4f4d\u7b26<\/td>\n<td>\u00a0\/^my\/\u00a0 \u5339\u914d\u6240\u6709\u4ee5my\u5f00\u5934\u7684\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0$<\/td>\n<td>\u00a0\u884c\u5c3e\u5b9a\u4f4d\u7b26<\/td>\n<td>\u00a0\/my$\/\u00a0 \u5339\u914d\u6240\u6709\u4ee5my\u7ed3\u5c3e\u7684\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0.<\/td>\n<td>\u00a0\u5339\u914d\u9664\u6362\u884c\u7b26\u4ee5\u5916\u7684\u5355\u4e2a\u5b57\u7b26<\/td>\n<td>\u00a0\/m..y\/\u00a0 \u5339\u914d\u5305\u542b\u5b57\u6bcdm&#xff0c;\u540e\u8ddf\u4e24\u4e2a\u4efb\u610f\u5b57\u7b26&#xff0c;\u518d\u8ddf\u5b57\u6bcdy\u7684\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0*<\/td>\n<td>\u00a0\u5339\u914d\u96f6\u4e2a\u6216\u591a\u4e2a\u524d\u5bfc\u5b57\u7b26<\/td>\n<td>\u00a0\/my*\/\u00a0 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\u5339\u914d\u5305\u542b\u4ee5my\u5f00\u5934\u7684\u5355\u8bcd\u7684\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0\\\\&gt;<\/td>\n<td>\u00a0\u8bcd\u5c3e\u5b9a\u4f4d\u7b26<\/td>\n<td>\u00a0\/my\\\\&gt;\/\u00a0 \u5339\u914d\u5305\u542b\u4ee5my\u7ed3\u5c3e\u7684\u5355\u8bcd\u7684\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0x\\\\{m\\\\}<\/td>\n<td>\u00a0\u8fde\u7eedm\u4e2ax<\/td>\n<td>\u00a0\/9\\\\{5\\\\}\/ \u5339\u914d\u5305\u542b\u8fde\u7eed5\u4e2a9\u7684\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0x\\\\{m,\\\\}<\/td>\n<td>\u00a0\u81f3\u5c11m\u4e2ax<\/td>\n<td>\u00a0\/9\\\\{5,\\\\}\/\u00a0 \u5339\u914d\u5305\u542b\u81f3\u5c11\u8fde\u7eed5\u4e2a9\u7684\u884c<\/td>\n<\/tr>\n<tr>\n<td>\u00a0x\\\\{m,n\\\\}<\/td>\n<td>\u00a0\u81f3\u5c11m\u4e2a&#xff0c;\u4f46\u4e0d\u8d85\u8fc7n\u4e2ax<\/td>\n<td>\u00a0\/9\\\\{5,7\\\\}\/\u00a0 \u5339\u914d\u5305\u542b\u8fde\u7eed5\u52307\u4e2a9\u7684\u884c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"background-color:transparent\">\u56db.sed\u7684\u7528\u6cd5<\/h2>\n<p>1.sed\u7684\u4f7f\u7528\u65b9\u6cd5&#xff0c;\u8c03\u7528sed \u547d\u4ee4\u7684\u8bed\u6cd5\u6709\u4e24\u79cd&#xff1a;<\/p>\n<p>\u4e00.\u5728\u547d\u4ee4\u884c\u6307\u5b9ased\u6307\u4ee4\u5bf9\u6587\u672c\u8fdb\u884c\u5904\u7406&#xff1a;sed &#043;\u9009\u9879\u00a0\u00a0\u2018\u6307\u4ee4\u2019 \u6587\u4ef6<\/p>\n<p>\u4e8c.\u5148\u5c06sed\u6307\u4ee4\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d&#xff0c;\u5c06\u8be5\u6587\u4ef6\u4f5c\u4e3a\u53c2\u6570\u8fdb\u884c\u8c03\u7528&#xff1a;sed\u00a0\u00a0\u00a0&#043;\u9009\u9879\u00a0\u00a0-f\u00a0\u00a0\u5305\u542bsed\u6307\u4ee4\u7684\u6587\u4ef6\u00a0\u00a0\u6587\u4ef6<\/p>\n<h2>\u4e94.\u7528\u6cd5\u793a\u4f8b<\/h2>\n<h3 style=\"background-color:transparent\">1.\u6253\u5370\u8f93\u51fa<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"341\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121619-680394135f52a.png\" width=\"786\" 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src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121620-680394146b634.png\" width=\"711\" \/><\/p>\n<p>#\u5947\u5076\u8868\u793a\u00a0<\/p>\n<p>\u6253\u5370\u51fa\u4ece\u7b2c\u4e00\u884c\u5f00\u59cb\u6bcf\u9694\u4e24\u884c\u7684\u5185\u5bb9&#xff0c;\u5e76\u663e\u793a\u884c\u6570<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"185\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121620-680394148b3d2.png\" width=\"681\" \/><\/p>\n<p>\u6253\u5370\u51fa\u4ece\u7b2c\u4e8c\u884c\u5f00\u59cb\u6bcf\u9694\u4e24\u884c\u7684\u5185\u5bb9&#xff0c;\u5e76\u663e\u793a\u884c\u6570<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"185\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121620-68039414aea7e.png\" width=\"779\" \/><\/p>\n<p>\u6253\u5370\u51fa\u4ece\u7b2c\u4e8c\u884c\u5f00\u59cb\u6bcf\u9694\u4e09\u884c\u7684\u5185\u5bb9&#xff0c;\u5e76\u663e\u793a\u884c\u6570<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"126\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121620-68039414d8cc3.png\" width=\"680\" \/><\/p>\n<p>\u6253\u5370\u51fa\u6700\u540e\u4e00\u884c &#xff1a;$<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"47\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121621-6803941505bdf.png\" width=\"540\" \/><\/p>\n<p>\u6253\u5370\u51fa\u884c\u5185\u5e26 &#039;the&#039; \u7684\u884c\u6570<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"86\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121621-680394152500a.png\" width=\"792\" \/><\/p>\n<p>\u6253\u5370\u51fa\u4ee5 &#039;bash&#039; \u7ed3\u5c3e\u7684\u5b57\u7b26\u7684\u884c\u6570\u00a0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"105\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121621-6803941548ae0.png\" width=\"582\" \/><\/p>\n<p>\u6253\u5370\u51fa\u5f00\u5934\u662fw\u4e2d\u95f4\u5339\u914d\u5305\u542b\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26&#xff0c;\u7ed3\u5c3e\u662fh\u7684\u884c\u6570&#xff08;<span style=\"color:#fe2c24\">\u4e24\u4e2a\u5b57\u7b26\u4e4b\u95f4\u5dee\u4efb\u610f\u5355\u5b57\u7b26\u5c31\u662f\u5dee\u4efb\u610f\u5b57\u7b26<\/span>&#xff09;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"41\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121621-6803941569259.png\" width=\"467\" \/><\/p>\n<p>\u6253\u5370\u51fa\u5305\u542b\u4efb\u610f\u6570\u5b57\u7684\u884c\u6570&#xff08;<span style=\"color:#fe2c24\">\u56e0\u672c\u6587\u6863\u6bcf\u884c\u5f00\u5934\u6807\u6709\u6570\u5b57\u6392\u5e8f\u6240\u4ee5\u5168\u90e8\u6253\u5370\u51fa\u6765\u4e86<\/span>&#xff09;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"349\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121621-6803941588798.png\" width=\"841\" \/><\/p>\n<p>\u6253\u5370\u51fa\u5f00\u5934\u4e3aroot\u7684\u884c\u6570&#xff08;<span style=\"color:#fe2c24\">root\u53ef\u4ee5\u6362\u6210\u4efb\u610f\u5b57\u7b26<\/span>&#xff09;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"41\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121621-68039415bbea9.png\" width=\"491\" \/><\/p>\n<p>\u6253\u5370\u51fa\u9664\u7b2c\u4e00\u884c\u4ee5\u5916\u6240\u6709\u884c\u6570 &#xff08;<span style=\"color:#fe2c24\">!p\u4e3a\u4e0d\u6253\u5370&#xff0c;&#xff01;\u7684\u610f\u601d\u4e3a\u53d6\u53cd<\/span>&#xff09;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"324\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121621-68039415da862.png\" width=\"806\" \/><\/p>\n<p>\u6253\u5370\u9664\u4e86nologin\u7684\u5176\u4ed6\u6240\u6709\u884c &#xff08;<span style=\"color:#fe2c24\">login\u53ef\u4ee5\u6362\u6210\u4efb\u610f\u5b57\u7b26<\/span>&#xff09;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"166\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121622-6803941617322.png\" width=\"507\" \/><\/p>\n<p>\u6253\u5370\u51fa\u6709root\u7684\u6bcf\u4e00\u884c\u7684\u884c\u53f7<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"69\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121622-680394163a556.png\" width=\"431\" \/><\/p>\n<p>\u6253\u5370\u51fa\u6709root\u7684\u6bcf\u4e00\u884c\u7684\u884c\u53f7\u5e76\u4e14\u6253\u5370\u51fa\u884c\u5185\u5bb9<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"105\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419121622-680394165986c.png\" width=\"575\" \/><\/p>\n<p>\u6253\u5370\u51fa\u6587\u4ef6\u6709\u591a\u5c11\u884c\u00a0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"45\" src=\"2025-04-19ibnrbud52gw.png\" width=\"391\" \/><\/p>\n<p>\u6253\u5370\u6587\u4ef6\u884c\u6570\u662f\u5426\u6821\u51c6\u00a0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"61\" src=\"2025-04-1950htyy5apea.png\" width=\"431\" \/><\/p>\n<p>sed\u547d\u4ee4\u5982\u679c\u542b\u6709\u6b63\u5219\u8868\u8fbe\u5f0f\u547d\u4ee4\u5219\u9700\u8981\u6dfb\u52a0\u9009\u9879 &#039;r&#039;\u624d\u80fd\u8fd0\u884c<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"64\" src=\"2025-04-19f0uhhmoaoew.png\" width=\"600\" \/><\/p>\n<p>\u53ef\u7ed3\u5408\u7ba1\u9053\u7b26\u8fdb\u884c\u00a0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"47\" src=\"2025-04-19m142g3xexbo.png\" width=\"556\" \/><\/p>\n<h3 style=\"background-color:transparent\">2.\u589e\u52a0\u5185\u5bb9\u00a0<\/h3>\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\" style=\"width:700px\">\n<tbody>\n<tr>\n<td>\u00a0a\\\\<\/td>\n<td>\n<p>\u00a0\u5728\u5f53\u524d\u884c\u540e\u6dfb\u52a0\u4e00\u884c\u6216\u591a\u884c\u3002\u591a\u884c\u65f6\u9664\u6700\u540e\u4e00\u884c\u5916&#xff0c;\u6bcf\u884c\u672b\u5c3e\u9700\u7528\u201c\\\\\u201d\u7eed\u884c<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\" style=\"width:700px\">\n<tbody>\n<tr>\n<td>\u00a0i\\\\<\/td>\n<td>\u00a0\u5728\u5f53\u524d\u884c\u4e4b\u524d\u63d2\u5165\u6587\u672c\u3002\u591a\u884c\u65f6\u9664\u6700\u540e\u4e00\u884c\u5916&#xff0c;\u6bcf\u884c\u672b\u5c3e\u9700\u7528&#034;\\\\&#034;\u7eed\u884c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5728\u7b2c\u4e09\u884c\u4e2d\u63d2\u5165\u64cd\u4f5c&#xff08;<span style=\"color:#fe2c24\">i:\u63d2\u5165\u64cd\u4f5c<\/span>&#xff09;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"366\" src=\"2025-04-19mcxmb33us2p.png\" width=\"835\" \/><\/p>\n<p>\u5728\u7b2c\u4e09\u884c\u4e2d\u63d2\u5165\u64cd\u4f5c&#xff0c;\u5e76\u5c06\u540e\u7eed\u64cd\u4f5c\u5185\u5bb9\u8fdb\u884c\u6362\u884c &#xff08;\\\\<span style=\"color:#fe2c24\">&#xff1a;\u6362\u884c&#xff1b;\u5728\u659c\u6760\u540e\u9762\u8ddf\u9009\u9879&#039;n&#039;<\/span>&#xff0c;<span style=\"color:#fe2c24\">\u4e0d\u7136\u65e0\u6cd5\u663e\u793a\u6362\u884c\u6548\u679c<\/span>&#xff09;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"382\" src=\"2025-04-19xywdlw022uq.png\" width=\"857\" \/><\/p>\n<p>\u5728\u7b2c\u4e00\u884c\u4e0b\u9762\u589e\u52a0\u5185\u5bb9 &#xff08;<span style=\"color:#fe2c24\">a:\u589e\u52a0\u5185\u5bb9<\/span>&#xff09;&#xff0c;\u82e5\u8981\u63d2\u5165\u591a\u884c\u5219(X,Ya)\u8be5\u8bed\u6cd5\u8868\u793ax\u884c\u5230y\u884c\u4e4b\u95f4\u6240\u6709\u884c\u4e0b\u8fdb\u884c\u63d2\u5165&#xff0c;&#xff08;x&#xff1b;y&#xff1b;za&#xff09;\u610f\u601d\u4e3a\u5728x&#xff0c;y&#xff0c;z\u4e0b\u5206\u522b\u63d2\u5165\u5185\u5bb9&#xff1b;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"366\" src=\"2025-04-19wcrei3foqbu.png\" width=\"805\" \/><\/p>\n<p>\u00a0\u5728\u6709\u5173\u952e\u5b57\u5f97\u6240\u6709\u884c\u4e0b\u63d2\u5165\u5185\u5bb9<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"406\" src=\"2025-04-19oodd23acvyg.png\" width=\"792\" \/><\/p>\n<p>\u6ce8&#xff1a;a\u540e\u9762\u6216\u8005i\u540e\u9762\u5f97\u6240\u6709\u5185\u5bb9\u5747\u53ef\u80fd\u4f1a\u88ab\u8ba4\u4e3a\u662f\u9700\u8981\u6dfb\u52a0\u5f97\u5185\u5bb9\u00a0<\/p>\n<h3 style=\"background-color:transparent\">3.\u5220\u9664<\/h3>\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\">\n<tbody>\n<tr>\n<td>\u00a0d<\/td>\n<td>\u00a0\u5220\u9664\u884c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0\u5220\u9664\u67d0\u884c\u6216\u8005\u591a\u884c&#xff1a;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"604\" src=\"2025-04-19iaple3qh2ac.png\" width=\"837\" \/><\/p>\n<p>\u00a0\u8ffd\u52a0\u5185\u5bb9\u81f3\u6587\u4ef6\u884c\u5c3e<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"386\" src=\"2025-04-19ix1nlsivxr4.png\" width=\"801\" \/><\/p>\n<h3 style=\"background-color:transparent\">4.\u66ff\u6362<\/h3>\n<ul>\n<li>g&#xff1a;\u884c\u5185\u5168\u5c40\u66ff\u6362<\/li>\n<li>p&#xff1a;\u663e\u793a\u66ff\u6362\u6210\u529f\u7684\u884c<\/li>\n<li>w&#xff1a;\u5c06\u66ff\u6362\u6210\u529f\u7684\u884c\u4fdd\u5b58\u81f3\u6587\u4ef6\u4e2d<\/li>\n<li>i&#xff1a;\u5ffd\u7565\u5927\u5c0f\u5199<\/li>\n<\/ul>\n<p>\u5728\u4f7f\u7528 sed \u547d\u4ee4\u8fdb\u884c\u66ff\u6362\u64cd\u4f5c\u65f6\u9700\u8981\u7528\u5230 s&#xff08;\u5b57\u7b26\u4e32\u66ff\u6362&#xff09;\u3001c&#xff08;\u6574\u884c\/\u6574\u5757\u66ff\u6362&#xff09;\u3001y &#xff08;\u5b57\u7b26\u8f6c\u6362&#xff09;<\/p>\n<p>\u4f8b\u5982&#xff1a;\u5c06root\u7684\u5b57\u7b26\u4e32\u66ff\u6362\u6210wjh<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"612\" src=\"2025-04-19joqsmi2bb22.png\" width=\"899\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"364\" src=\"2025-04-191pd5osx1fp2.png\" width=\"797\" \/><\/p>\n<p>  <span style=\"color:#333333\">\u8fd9\u91cc\u6ca1\u6709\u771f\u7684\u6539\u53d8\u6587\u4ef6\u5185\u5bb9&#xff0c;\u53ea\u662f\u8f93\u51fa\u5230\u5c4f\u5e55&#xff0c;\u5982\u679c\u60f3\u8981\u771f\u7684\u66ff\u6362&#xff0c;\u9700\u8981\u7528<\/span><span style=\"color:#333333\">-i<\/span><span style=\"color:#333333\">\u9009\u9879&#xff0c;\u5efa\u8bae\u7528<\/span><span style=\"color:#333333\">-i<\/span><span style=\"color:#333333\">\u4e4b\u524d\u5bf9\u539f\u6587<\/span><span style=\"color:#333333\">\u4ef6\u8fdb\u884c\u5907\u4efd<\/span> <\/p>\n<p>\u00a0<\/p>\n<h3 style=\"background-color:transparent\">5.\u641c\u7d22\u66ff\u6362<\/h3>\n<p>\u4f7f\u7528 sed \u547d\u4ee4\u8fdb\u884c\u66ff\u6362\u64cd\u4f5c\u65f6\u9700\u8981\u7528\u5230 s&#xff08;\u5b57\u7b26\u4e32\u66ff\u6362&#xff09;\u3001c&#xff08;\u6574\u884c\/\u6574\u5757\u66ff\u6362&#xff09;\u3001y &#xff08;\u5b57\u7b26\u8f6c\u6362&#xff09;\u547d\u4ee4\u9009\u9879<\/p>\n<p>\u00a0\u641c\u7d22root\u6240\u5728\u884c&#xff0c;\u5e76\u4e14\u5168\u90e8\u6362\u6210ROOT\u4e14\u6253\u5370\u51fa\u6765<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"571\" src=\"2025-04-19r15mto4buve.png\" width=\"902\" \/><\/p>\n<p>\u00a0<span style=\"color:#333333\">\u641c\u7d22\u5b57\u6bcd<\/span><span style=\"color:#333333\">o<\/span><span style=\"color:#333333\">&#xff0c;\u4ec5\u66ff\u6362\u6bcf\u884c\u7b2c\u4e8c\u4e2a<\/span><span style=\"color:#333333\">o<\/span><span style=\"color:#333333\">\u4e3a\u5927\u5199<\/span><span style=\"color:#333333\">O <\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"264\" src=\"2025-04-19s0bkgtj4clw.png\" width=\"782\" \/><\/p>\n<p> <span style=\"color:#333333\">\u628a<\/span><span style=\"color:#333333\">1-5<\/span><span style=\"color:#333333\">\u884c\u7684\u5f00\u5934\u90fd\u63d2\u5165<\/span><span style=\"color:#333333\">#<\/span><span style=\"color:#333333\">\u53f7<\/span> <\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"125\" src=\"2025-04-192qc4jpuzo4n.png\" width=\"649\" \/> <\/p>\n<p> <span style=\"color:#333333\">\u628a\u6240\u6709<\/span><span style=\"color:#333333\">\/sbin\/nologin<\/span><span style=\"color:#333333\">\u6362\u6210<\/span><span style=\"color:#333333\">kgc<\/span><span style=\"color:#333333\">&#xff0c;<\/span><span style=\"color:#333333\">\/<\/span><span style=\"color:#333333\">\u9700\u8981\u8f6c\u4e49<\/span> <\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"422\" src=\"2025-04-19vj2g3u4wfw5.png\" width=\"881\" \/> <\/p>\n<p>\u00a0<\/p>\n<p>  <span style=\"color:#333333\">\u4f46\u662f\u4f7f\u7528\u9ed8\u8ba4\u7684\u8f6c\u4e49\u7b26\u4e4b\u540e\u9605\u8bfb\u4f53\u9a8c\u975e\u5e38\u5dee&#xff0c;\u800c\u4e14\u8fd8\u5bb9\u6613\u5199\u9519&#xff0c;\u6211\u4eec\u53ef\u4ee5\u6307\u5b9a\u66f4\u6709\u8fa8\u8bc6\u5ea6\u7684\u8f6c\u4e49\u7b26&#xff0c;\u4f8b <\/span><span style=\"color:#333333\">\u5982<\/span><span style=\"color:#333333\">&#064;,#,<\/span><span style=\"color:#333333\">\u6570\u5b57\u90fd\u53ef\u4ee5&#xff0c;\u5c06\u539f\u6765\u7684<\/span><span style=\"color:#333333\">\/<\/span><br \/>\n  <span style=\"color:#333333\">\u66ff\u6362\u6210\u6211\u4eec\u60f3\u8981\u7684 <\/span> <\/p>\n<p>  <span style=\"color:#aa5500\">sed -n &#039;s&#064;\/sbin\/nologin&#064;kgc&#064;gp jay<\/span> <\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"512\" src=\"2025-04-19k5vfgunz5et.png\" width=\"871\" \/> <\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<span style=\"color:#aa5500\">sed -n\u00a0&#039;s\/network\/ooooo\/igp&#039; jay<\/span><\/p>\n<p>\u5c06network\u66ff\u6362\u6210oooo\u5e76\u4e14\u4e0d\u5206\u5927\u5c0f\u5199<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"40\" src=\"2025-04-19ywx4w4syoen.png\" width=\"810\" \/><\/p>\n<h3>\u00a06.\u63d2\u5165\u6587\u4ef6<\/h3>\n<p> <span style=\"color:#333333\">\u5c06<\/span><span style=\"color:#333333\">\/etc\/hosts<\/span><span style=\"color:#333333\">\u6587\u4ef6\u63d2\u5165\u5230\u7b2c\u4e09\u884c\u540e\u9762<\/span> <\/p>\n<p>\u00a0<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"126\" src=\"2025-04-1902y34tteu4f.png\" width=\"856\" \/><\/p>\n<p>\u00a0<span style=\"color:#aa5500\">sed &#039;\/2\/r \/etc\/hosts&#039; \/tmp\/passwd \u00a0 <\/span><span style=\"color:#0d0016\">\u628a\u6587\u4ef6\u63d2\u5165\u542b\u67092\u7684\u884c\u540e\u9762<\/span><\/p>\n<h3>7.\u53e6\u5b58\u5230\u6587\u4ef6<\/h3>\n<p> <span style=\"color:#333333\">\u4f7f\u7528<\/span><span style=\"color:#333333\">w<\/span><span style=\"color:#333333\">\u6307\u4ee4\u5c06\u5f53\u524d\u7f16\u8f91\u7684\u6587\u4ef6\u5185\u5bb9\u53e6\u5b58\u5230\u5176\u4ed6\u6587\u4ef6\u4e2d&#xff0c;\u5982\u679c\u76ee\u6807\u6587\u4ef6\u5df2\u5b58\u5728&#xff0c;\u5219\u4f1a\u5c06\u76ee\u6807\u6587\u4ef6\u7684\u5185\u5bb9\u8986<\/span><span style=\"color:#333333\">\u76d6<\/span> <\/p>\n<p>\u00a0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"45\" src=\"2025-04-19icobvr5wmst.png\" width=\"436\" \/><\/p>\n<h3>8.\u540c\u65f6\u7f16\u8f91\u00a0<\/h3>\n<p> <span style=\"color:#333333\">sed<\/span><span style=\"color:#333333\">\u652f\u6301\u4e00\u4e2a\u6216\u591a\u4e2a<\/span><span style=\"color:#333333\">-e<\/span><br \/>\n <span style=\"color:#333333\">\u53c2\u6570 <\/span> <\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"65\" src=\"2025-04-19v2zsz45fe1v.png\" width=\"544\" \/> <\/p>\n<h3>9.\u5206\u7ec4\u64cd\u4f5c<\/h3>\n<p><span style=\"color:#333333\">\u5f53\u6211\u4eec\u9700\u8981\u5bf9\u4e00\u884c\u6570\u636e\u8fdb\u884c\u591a\u6b21\u64cd\u4f5c\u7684\u65f6\u5019\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<\/span><span style=\"color:#333333\">{}<\/span><span style=\"color:#333333\">\u8fdb\u884c\u5206\u7ec4<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"201\" src=\"2025-04-19qgzs0zc03ed.png\" width=\"850\" \/><\/p>\n<p>\u00a0<\/p>\n<p>  <span style=\"color:#333333\">###<\/span><br \/>\n  <span style=\"color:#333333\">\u5206\u7ec4 <\/span><br \/>\n  <span style=\"color:#333333\">s\/\/<\/span><br \/>\n  <span style=\"color:#333333\">\u4ee3\u8868\u67e5\u627e\u66ff\u6362 &#xff08;&#xff09;\u4ee3\u8868\u5206\u7ec4 <\/span><br \/>\n  <span style=\"color:#333333\">\\\\1 <\/span><br \/>\n  <span style=\"color:#333333\">\u4ee3\u8868\u7559\u4e0b\u7684\u7ec4 <\/span><br \/>\n  <span style=\"color:#333333\">r<\/span><br \/>\n  <span style=\"color:#333333\">&#xff1a;\u8bfb\u53d6\u6307\u5b9a\u6587\u4ef6&#xff1b; <\/span> <\/p>\n<p>  <span style=\"color:#333333\">[root&#064;localhost ~]# echo 123abcxyz |sed -r &#039;s\/(123)(abc)(xyz)\/\\\\1\/&#039; <\/span> <\/p>\n<p>  <span style=\"color:#333333\">#####<\/span><br \/>\n  <span style=\"color:#333333\">\u4ece <\/span><br \/>\n  <span style=\"color:#333333\">ifconfig <\/span><br \/>\n  <span style=\"color:#333333\">\u547d\u4ee4\u7684\u8f93\u51fa\u4e2d\u63d0\u53d6 <\/span><br \/>\n  <span style=\"color:#333333\">ens33 <\/span><br \/>\n  <span style=\"color:#333333\">\u7f51\u5361\u7684 <\/span><br \/>\n  <span style=\"color:#333333\">IP <\/span><br \/>\n  <span style=\"color:#333333\">\u5730\u5740\u3002\u901a\u8fc7 <\/span><br \/>\n  <span style=\"color:#333333\">sed <\/span><br \/>\n  <span style=\"color:#333333\">\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d&#xff0c;\u5b83\u4f1a\u627e\u5230 <\/span> <\/p>\n<p>  <span style=\"color:#333333\">\u5305\u542b <\/span><br 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