{"id":102,"date":"2019-02-10T17:47:33","date_gmt":"2019-02-10T09:47:33","guid":{"rendered":"http:\/\/b.yesiyu.top\/?p=102"},"modified":"2019-02-10T17:47:33","modified_gmt":"2019-02-10T09:47:33","slug":"linux-%e6%96%87%e4%bb%b6%e5%9f%ba%e6%9c%ac%e5%b1%9e%e6%80%a7","status":"publish","type":"post","link":"https:\/\/b.yesiyu.top\/?p=102","title":{"rendered":"Linux \u6587\u4ef6\u57fa\u672c\u5c5e\u6027"},"content":{"rendered":"<h1><span class=\"color_h1\">Linux\u00a0<\/span>\u6587\u4ef6\u57fa\u672c\u5c5e\u6027<\/h1>\n<p>Linux\u7cfb\u7edf\u662f\u4e00\u79cd\u5178\u578b\u7684\u591a\u7528\u6237\u7cfb\u7edf\uff0c\u4e0d\u540c\u7684\u7528\u6237\u5904\u4e8e\u4e0d\u540c\u7684\u5730\u4f4d\uff0c\u62e5\u6709\u4e0d\u540c\u7684\u6743\u9650\u3002\u4e3a\u4e86\u4fdd\u62a4\u7cfb\u7edf\u7684\u5b89\u5168\u6027\uff0cLinux\u7cfb\u7edf\u5bf9\u4e0d\u540c\u7684\u7528\u6237\u8bbf\u95ee\u540c\u4e00\u6587\u4ef6\uff08\u5305\u62ec\u76ee\u5f55\u6587\u4ef6\uff09\u7684\u6743\u9650\u505a\u4e86\u4e0d\u540c\u7684\u89c4\u5b9a\u3002<\/p>\n<p>\u5728Linux\u4e2d\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528ll\u6216\u8005ls \u2013l\u547d\u4ee4\u6765\u663e\u793a\u4e00\u4e2a\u6587\u4ef6\u7684\u5c5e\u6027\u4ee5\u53ca\u6587\u4ef6\u6240\u5c5e\u7684\u7528\u6237\u548c\u7ec4\uff0c\u5982\uff1a<\/p>\n<pre class=\"prettyprint prettyprinted\"><span class=\"pun\">[<\/span><span class=\"pln\">root@www <\/span><span class=\"pun\">\/]#<\/span><span class=\"pln\"> ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">l\r\ntotal <\/span><span class=\"lit\">64<\/span><span class=\"pln\">\r\ndr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">x   <\/span><span class=\"lit\">2<\/span><span class=\"pln\"> root root <\/span><span class=\"lit\">4096<\/span> <span class=\"typ\">Dec<\/span> <span class=\"lit\">14<\/span>  <span class=\"lit\">2012<\/span><span class=\"pln\"> bin\r\ndr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">x   <\/span><span class=\"lit\">4<\/span><span class=\"pln\"> root root <\/span><span class=\"lit\">4096<\/span> <span class=\"typ\">Apr<\/span> <span class=\"lit\">19<\/span>  <span class=\"lit\">2012<\/span><span class=\"pln\"> boot\r\n<\/span><span class=\"pun\">\u2026\u2026<\/span><\/pre>\n<p>\u5b9e\u4f8b\u4e2d\uff0cbin\u6587\u4ef6\u7684\u7b2c\u4e00\u4e2a\u5c5e\u6027\u7528&#8221;d&#8221;\u8868\u793a\u3002&#8221;d&#8221;\u5728Linux\u4e2d\u4ee3\u8868\u8be5\u6587\u4ef6\u662f\u4e00\u4e2a\u76ee\u5f55\u6587\u4ef6\u3002<\/p>\n<p>\u5728Linux\u4e2d\u7b2c\u4e00\u4e2a\u5b57\u7b26\u4ee3\u8868\u8fd9\u4e2a\u6587\u4ef6\u662f\u76ee\u5f55\u3001\u6587\u4ef6\u6216\u94fe\u63a5\u6587\u4ef6\u7b49\u7b49\u3002<\/p>\n<ul>\n<li>\u5f53\u4e3a[\u00a0<span class=\"marked\">d<\/span>\u00a0]\u5219\u662f\u76ee\u5f55<\/li>\n<li>\u5f53\u4e3a[\u00a0<span class=\"marked\">&#8211;<\/span>\u00a0]\u5219\u662f\u6587\u4ef6\uff1b<\/li>\n<li>\u82e5\u662f[\u00a0<span class=\"marked\">l<\/span>\u00a0]\u5219\u8868\u793a\u4e3a\u94fe\u63a5\u6587\u6863(link file)\uff1b<\/li>\n<li>\u82e5\u662f[\u00a0<span class=\"marked\">b<\/span>\u00a0]\u5219\u8868\u793a\u4e3a\u88c5\u7f6e\u6587\u4ef6\u91cc\u9762\u7684\u53ef\u4f9b\u50a8\u5b58\u7684\u63a5\u53e3\u8bbe\u5907(\u53ef\u968f\u673a\u5b58\u53d6\u88c5\u7f6e)\uff1b<\/li>\n<li>\u82e5\u662f[\u00a0<span class=\"marked\">c<\/span>\u00a0]\u5219\u8868\u793a\u4e3a\u88c5\u7f6e\u6587\u4ef6\u91cc\u9762\u7684\u4e32\u884c\u7aef\u53e3\u8bbe\u5907\uff0c\u4f8b\u5982\u952e\u76d8\u3001\u9f20\u6807(\u4e00\u6b21\u6027\u8bfb\u53d6\u88c5\u7f6e)\u3002<\/li>\n<\/ul>\n<p>\u63a5\u4e0b\u6765\u7684\u5b57\u7b26\u4e2d\uff0c\u4ee5\u4e09\u4e2a\u4e3a\u4e00\u7ec4\uff0c\u4e14\u5747\u4e3a\u300erwx\u300f \u7684\u4e09\u4e2a\u53c2\u6570\u7684\u7ec4\u5408\u3002\u5176\u4e2d\uff0c[ r ]\u4ee3\u8868\u53ef\u8bfb(read)\u3001[ w ]\u4ee3\u8868\u53ef\u5199(write)\u3001[ x ]\u4ee3\u8868\u53ef\u6267\u884c(execute)\u3002 \u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u4e09\u4e2a\u6743\u9650\u7684\u4f4d\u7f6e\u4e0d\u4f1a\u6539\u53d8\uff0c\u5982\u679c\u6ca1\u6709\u6743\u9650\uff0c\u5c31\u4f1a\u51fa\u73b0\u51cf\u53f7[ &#8211; ]\u800c\u5df2\u3002<\/p>\n<p>\u6bcf\u4e2a\u6587\u4ef6\u7684\u5c5e\u6027\u7531\u5de6\u8fb9\u7b2c\u4e00\u90e8\u5206\u768410\u4e2a\u5b57\u7b26\u6765\u786e\u5b9a\uff08\u5982\u4e0b\u56fe\uff09\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.runoob.com\/wp-content\/uploads\/2014\/06\/363003_1227493859FdXT.png\" alt=\"363003_1227493859FdXT\" width=\"451\" height=\"200\" \/><\/p>\n<p>\u4ece\u5de6\u81f3\u53f3\u75280-9\u8fd9\u4e9b\u6570\u5b57\u6765\u8868\u793a\u3002<\/p>\n<p>\u7b2c0\u4f4d\u786e\u5b9a\u6587\u4ef6\u7c7b\u578b\uff0c\u7b2c1-3\u4f4d\u786e\u5b9a\u5c5e\u4e3b\uff08\u8be5\u6587\u4ef6\u7684\u6240\u6709\u8005\uff09\u62e5\u6709\u8be5\u6587\u4ef6\u7684\u6743\u9650\u3002<\/p>\n<p>\u7b2c4-6\u4f4d\u786e\u5b9a\u5c5e\u7ec4\uff08\u6240\u6709\u8005\u7684\u540c\u7ec4\u7528\u6237\uff09\u62e5\u6709\u8be5\u6587\u4ef6\u7684\u6743\u9650\uff0c\u7b2c7-9\u4f4d\u786e\u5b9a\u5176\u4ed6\u7528\u6237\u62e5\u6709\u8be5\u6587\u4ef6\u7684\u6743\u9650\u3002<\/p>\n<p>\u5176\u4e2d\uff0c\u7b2c1\u30014\u30017\u4f4d\u8868\u793a\u8bfb\u6743\u9650\uff0c\u5982\u679c\u7528&#8221;r&#8221;\u5b57\u7b26\u8868\u793a\uff0c\u5219\u6709\u8bfb\u6743\u9650\uff0c\u5982\u679c\u7528&#8221;-&#8220;\u5b57\u7b26\u8868\u793a\uff0c\u5219\u6ca1\u6709\u8bfb\u6743\u9650\uff1b<\/p>\n<p>\u7b2c2\u30015\u30018\u4f4d\u8868\u793a\u5199\u6743\u9650\uff0c\u5982\u679c\u7528&#8221;w&#8221;\u5b57\u7b26\u8868\u793a\uff0c\u5219\u6709\u5199\u6743\u9650\uff0c\u5982\u679c\u7528&#8221;-&#8220;\u5b57\u7b26\u8868\u793a\u6ca1\u6709\u5199\u6743\u9650\uff1b\u7b2c3\u30016\u30019\u4f4d\u8868\u793a\u53ef\u6267\u884c\u6743\u9650\uff0c\u5982\u679c\u7528&#8221;x&#8221;\u5b57\u7b26\u8868\u793a\uff0c\u5219\u6709\u6267\u884c\u6743\u9650\uff0c\u5982\u679c\u7528&#8221;-&#8220;\u5b57\u7b26\u8868\u793a\uff0c\u5219\u6ca1\u6709\u6267\u884c\u6743\u9650\u3002<\/p>\n<hr \/>\n<h2>Linux\u6587\u4ef6\u5c5e\u4e3b\u548c\u5c5e\u7ec4<\/h2>\n<pre class=\"prettyprint prettyprinted\"><span class=\"pun\">[<\/span><span class=\"pln\">root@www <\/span><span class=\"pun\">\/]#<\/span><span class=\"pln\"> ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">l\r\ntotal <\/span><span class=\"lit\">64<\/span><span class=\"pln\">\r\ndrwxr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">x <\/span><span class=\"lit\">2<\/span><span class=\"pln\"> root  root  <\/span><span class=\"lit\">4096<\/span> <span class=\"typ\">Feb<\/span> <span class=\"lit\">15<\/span> <span class=\"lit\">14<\/span><span class=\"pun\">:<\/span><span class=\"lit\">46<\/span><span class=\"pln\"> cron\r\ndrwxr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">x <\/span><span class=\"lit\">3<\/span><span class=\"pln\"> mysql mysql <\/span><span class=\"lit\">4096<\/span> <span class=\"typ\">Apr<\/span> <span class=\"lit\">21<\/span>  <span class=\"lit\">2014<\/span><span class=\"pln\"> mysql\r\n<\/span><span class=\"pun\">\u2026\u2026<\/span><\/pre>\n<p>\u5bf9\u4e8e\u6587\u4ef6\u6765\u8bf4\uff0c\u5b83\u90fd\u6709\u4e00\u4e2a\u7279\u5b9a\u7684\u6240\u6709\u8005\uff0c\u4e5f\u5c31\u662f\u5bf9\u8be5\u6587\u4ef6\u5177\u6709\u6240\u6709\u6743\u7684\u7528\u6237\u3002<\/p>\n<p>\u540c\u65f6\uff0c\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u7528\u6237\u662f\u6309\u7ec4\u5206\u7c7b\u7684\uff0c\u4e00\u4e2a\u7528\u6237\u5c5e\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u7ec4\u3002<\/p>\n<p>\u6587\u4ef6\u6240\u6709\u8005\u4ee5\u5916\u7684\u7528\u6237\u53c8\u53ef\u4ee5\u5206\u4e3a\u6587\u4ef6\u6240\u6709\u8005\u7684\u540c\u7ec4\u7528\u6237\u548c\u5176\u4ed6\u7528\u6237\u3002<\/p>\n<p>\u56e0\u6b64\uff0cLinux\u7cfb\u7edf\u6309\u6587\u4ef6\u6240\u6709\u8005\u3001\u6587\u4ef6\u6240\u6709\u8005\u540c\u7ec4\u7528\u6237\u548c\u5176\u4ed6\u7528\u6237\u6765\u89c4\u5b9a\u4e86\u4e0d\u540c\u7684\u6587\u4ef6\u8bbf\u95ee\u6743\u9650\u3002<\/p>\n<p>\u5728\u4ee5\u4e0a\u5b9e\u4f8b\u4e2d\uff0cmysql \u6587\u4ef6\u662f\u4e00\u4e2a\u76ee\u5f55\u6587\u4ef6\uff0c\u5c5e\u4e3b\u548c\u5c5e\u7ec4\u90fd\u4e3a mysql\uff0c\u5c5e\u4e3b\u6709\u53ef\u8bfb\u3001\u53ef\u5199\u3001\u53ef\u6267\u884c\u7684\u6743\u9650\uff1b\u4e0e\u5c5e\u4e3b\u540c\u7ec4\u7684\u5176\u4ed6\u7528\u6237\u6709\u53ef\u8bfb\u548c\u53ef\u6267\u884c\u7684\u6743\u9650\uff1b\u5176\u4ed6\u7528\u6237\u4e5f\u6709\u53ef\u8bfb\u548c\u53ef\u6267\u884c\u7684\u6743\u9650\u3002<\/p>\n<p>\u5bf9\u4e8e root \u7528\u6237\u6765\u8bf4\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u6587\u4ef6\u7684\u6743\u9650\u5bf9\u5176\u4e0d\u8d77\u4f5c\u7528\u3002<\/p>\n<h3>\u66f4\u6539\u6587\u4ef6\u5c5e\u6027<\/h3>\n<h4>1\u3001chgrp\uff1a\u66f4\u6539\u6587\u4ef6\u5c5e\u7ec4<\/h4>\n<p>\u8bed\u6cd5\uff1a<\/p>\n<pre class=\"prettyprint prettyprinted\"><span class=\"pln\">chgrp <\/span><span class=\"pun\">[-<\/span><span class=\"pln\">R<\/span><span class=\"pun\">]<\/span> <span class=\"pun\">\u5c5e\u7ec4\u540d<\/span> <span class=\"pun\">\u6587\u4ef6\u540d<\/span><\/pre>\n<p>\u53c2\u6570\u9009\u9879<\/p>\n<ul>\n<li>-R\uff1a\u9012\u5f52\u66f4\u6539\u6587\u4ef6\u5c5e\u7ec4\uff0c\u5c31\u662f\u5728\u66f4\u6539\u67d0\u4e2a\u76ee\u5f55\u6587\u4ef6\u7684\u5c5e\u7ec4\u65f6\uff0c\u5982\u679c\u52a0\u4e0a-R\u7684\u53c2\u6570\uff0c\u90a3\u4e48\u8be5\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6\u7684\u5c5e\u7ec4\u90fd\u4f1a\u66f4\u6539\u3002<\/li>\n<\/ul>\n<h4>2\u3001chown\uff1a\u66f4\u6539\u6587\u4ef6\u5c5e\u4e3b\uff0c\u4e5f\u53ef\u4ee5\u540c\u65f6\u66f4\u6539\u6587\u4ef6\u5c5e\u7ec4<\/h4>\n<p>\u8bed\u6cd5\uff1a<\/p>\n<pre class=\"prettyprint prettyprinted\"><span class=\"pln\">chown <\/span><span class=\"pun\">[\u2013<\/span><span class=\"pln\">R<\/span><span class=\"pun\">]<\/span> <span class=\"pun\">\u5c5e\u4e3b\u540d<\/span> <span class=\"pun\">\u6587\u4ef6\u540d<\/span><span class=\"pln\">\r\nchown <\/span><span class=\"pun\">[-<\/span><span class=\"pln\">R<\/span><span class=\"pun\">]<\/span> <span class=\"pun\">\u5c5e\u4e3b\u540d\uff1a\u5c5e\u7ec4\u540d<\/span> <span class=\"pun\">\u6587\u4ef6\u540d<\/span><\/pre>\n<p>\u8fdb\u5165 \/root \u76ee\u5f55\uff08~\uff09\u5c06install.log\u7684\u62e5\u6709\u8005\u6539\u4e3abin\u8fd9\u4e2a\u8d26\u53f7\uff1a<\/p>\n<pre class=\"prettyprint prettyprinted\"><span class=\"pun\">[<\/span><span class=\"pln\">root@www <\/span><span class=\"pun\">~]<\/span><span class=\"pln\"> cd <\/span><span class=\"pun\">~<\/span>\r\n<span class=\"pun\">[<\/span><span class=\"pln\">root@www <\/span><span class=\"pun\">~]#<\/span><span class=\"pln\"> chown bin install<\/span><span class=\"pun\">.<\/span><span class=\"pln\">log\r\n<\/span><span class=\"pun\">[<\/span><span class=\"pln\">root@www <\/span><span class=\"pun\">~]#<\/span><span class=\"pln\"> ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">l\r\n<\/span><span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span>  <span class=\"lit\">1<\/span><span class=\"pln\"> bin  users <\/span><span class=\"lit\">68495<\/span> <span class=\"typ\">Jun<\/span> <span class=\"lit\">25<\/span> <span class=\"lit\">08<\/span><span class=\"pun\">:<\/span><span class=\"lit\">53<\/span><span class=\"pln\"> install<\/span><span class=\"pun\">.<\/span><span class=\"pln\">log<\/span><\/pre>\n<p>\u5c06install.log\u7684\u62e5\u6709\u8005\u4e0e\u7fa4\u7ec4\u6539\u56de\u4e3aroot\uff1a<\/p>\n<pre class=\"prettyprint prettyprinted\"><span class=\"pun\">[<\/span><span class=\"pln\">root@www <\/span><span class=\"pun\">~]#<\/span><span class=\"pln\"> chown root<\/span><span class=\"pun\">:<\/span><span class=\"pln\">root install<\/span><span class=\"pun\">.<\/span><span class=\"pln\">log\r\n<\/span><span class=\"pun\">[<\/span><span class=\"pln\">root@www <\/span><span class=\"pun\">~]#<\/span><span class=\"pln\"> ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">l\r\n<\/span><span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span>  <span class=\"lit\">1<\/span><span class=\"pln\"> root root <\/span><span class=\"lit\">68495<\/span> <span class=\"typ\">Jun<\/span> <span class=\"lit\">25<\/span> <span class=\"lit\">08<\/span><span class=\"pun\">:<\/span><span class=\"lit\">53<\/span><span class=\"pln\"> install<\/span><span class=\"pun\">.<\/span><span class=\"pln\">log<\/span><\/pre>\n<p><strong>\u6bcf\u4e2a\u6587\u4ef6\u7684\u5c5e\u6027\u7531\u5de6\u8fb9\u7b2c\u4e00\u90e8\u5206\u768410\u4e2a\u5b57\u7b26\uff08\u5982\u4e0a\u7684\u201cdr-xr-xr-x\u201d\uff09\u6765\u786e\u5b9a\u3002<\/strong>\u6211\u4eec\u628a\u5341\u4e2a\u5b57\u7b26\u62c6\u5f00\u770b\uff1a<\/p>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>10\u4f4d\u5b57\u7b26\u8868\u793a\uff1a<\/strong><\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>0\u4f4d\uff1a<\/strong>\u786e\u5b9a\u6587\u4ef6\u7c7b\u578b<\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>1-3\u4f4d\uff1a<\/strong>\u786e\u5b9a\u8be5\u6587\u4ef6\u7684\u6240\u6709\u8005\u5bf9\u6587\u4ef6\u7684\u6743\u9650\u00a0<strong>owner<\/strong><\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>4-6\u4f4d\uff1a<\/strong>\u786e\u5b9a\u6240\u6709\u8005\u7684\u540c\u7ec4\u7528\u6237\u62e5\u6709\u8be5\u6587\u4ef6\u7684\u6743\u9650\u00a0<strong>group<\/strong><\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>7-9\u4f4d\uff1a<\/strong>\u786e\u5b9a\u5176\u4ed6\u7528\u6237\u62e5\u6709\u8be5\u6587\u4ef6\u7684\u6743\u9650\u00a0<strong>others<\/strong><\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>\u7b2c\u4e00\u4e2a\u5b57\u7b26\uff1a<\/strong>\u4ee3\u8868\u8fd9\u4e2a\u6587\u4ef6\u7684\u7c7b\u578b\uff0c\u662f\u76ee\u5f55\u3001\u6587\u4ef6\uff0c\u8fd8\u662f\u4e00\u4e2a\u94fe\u63a5\u7b49\u7b49<\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>[\u00a0<\/strong><strong>d<\/strong><strong>\u00a0]\u00a0<\/strong>\u76ee\u5f55<\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>[\u00a0<\/strong><strong>&#8211;\u00a0<\/strong><strong>]\u00a0<\/strong>\u6587\u4ef6<\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>[\u00a0<\/strong><strong>l\u00a0<\/strong><strong>\u00a0]\u00a0<\/strong>\u94fe\u63a5\u6587\u6863(link file)<\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>[\u00a0<\/strong><strong>b<\/strong><strong>\u00a0]\u00a0<\/strong>\u53ef\u4f9b\u50a8\u5b58\u7684\u63a5\u53e3\u8bbe\u5907(\u53ef\u968f\u673a\u5b58\u53d6\u88c5\u7f6e)<\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>[\u00a0<\/strong><strong>c<\/strong><strong>\u00a0]\u00a0<\/strong>\u4e32\u884c\u7aef\u53e3\u8bbe\u5907\uff0c\u4f8b\u5982\u952e\u76d8\u3001\u9f20\u6807(\u4e00\u6b21\u6027\u8bfb\u53d6\u88c5\u7f6e)<\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>\u63a5\u4e0b\u6765\u7684\u5b57\u7b26\uff1a<\/strong>\u4ee5\u4e09\u4e2a\u4e00\u7ec4\u5206\u6210\u4e09\u7ec4\uff0c\u7528 r\u3001w\u3001x \u4e09\u4e2a\u53c2\u6570\u7684\u7ec4\u5408\u8868\u793a\uff0c\u4f4d\u7f6e\u4e0d\u4f1a\u6539\u53d8<\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>[ r ]<\/strong>\u00a0\u4ee3\u8868\u53ef\u8bfb(read)<\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>[ w ]\u00a0<\/strong>\u4ee3\u8868\u53ef\u5199(write)<\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>[ x ]<\/strong>\u00a0\u4ee3\u8868\u53ef\u6267\u884c(execute)<\/li>\n<\/ul>\n<ul>\n<li><i class=\"fa fa-circle\" aria-hidden=\"true\"><\/i><strong>[ &#8211; ]\u00a0<\/strong>\u6ca1\u6709\u6743\u9650<\/li>\n<\/ul>\n<h4>3\u3001chmod\uff1a\u66f4\u6539\u6587\u4ef69\u4e2a\u5c5e\u6027<\/h4>\n<p>Linux\u6587\u4ef6\u5c5e\u6027\u6709\u4e24\u79cd\u8bbe\u7f6e\u65b9\u6cd5\uff0c\u4e00\u79cd\u662f\u6570\u5b57\uff0c\u4e00\u79cd\u662f\u7b26\u53f7\u3002<\/p>\n<p>Linux\u6587\u4ef6\u7684\u57fa\u672c\u6743\u9650\u5c31\u6709\u4e5d\u4e2a\uff0c\u5206\u522b\u662fowner\/group\/others\u4e09\u79cd\u8eab\u4efd\u5404\u6709\u81ea\u5df1\u7684read\/write\/execute\u6743\u9650\u3002<\/p>\n<p>\u5148\u590d\u4e60\u4e00\u4e0b\u521a\u521a\u4e0a\u9762\u63d0\u5230\u7684\u6570\u636e\uff1a\u6587\u4ef6\u7684\u6743\u9650\u5b57\u7b26\u4e3a\uff1a\u300e-rwxrwxrwx\u300f\uff0c \u8fd9\u4e5d\u4e2a\u6743\u9650\u662f\u4e09\u4e2a\u4e09\u4e2a\u4e00\u7ec4\u7684\uff01\u5176\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6570\u5b57\u6765\u4ee3\u8868\u5404\u4e2a\u6743\u9650\uff0c\u5404\u6743\u9650\u7684\u5206\u6570\u5bf9\u7167\u8868\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>r:4<\/li>\n<li>w:2<\/li>\n<li>x:1<\/li>\n<\/ul>\n<p>\u6bcf\u79cd\u8eab\u4efd(owner\/group\/others)\u5404\u81ea\u7684\u4e09\u4e2a\u6743\u9650(r\/w\/x)\u5206\u6570\u662f\u9700\u8981\u7d2f\u52a0\u7684\uff0c\u4f8b\u5982\u5f53\u6743\u9650\u4e3a\uff1a [-rwxrwx&#8212;] \u5206\u6570\u5219\u662f\uff1a<\/p>\n<ul>\n<li>owner = rwx = 4+2+1 = 7<\/li>\n<li>group = rwx = 4+2+1 = 7<\/li>\n<li>others= &#8212; = 0+0+0 = 0<\/li>\n<\/ul>\n<p>\u6240\u4ee5\u7b49\u4e00\u4e0b\u6211\u4eec\u8bbe\u5b9a\u6743\u9650\u7684\u53d8\u66f4\u65f6\uff0c\u8be5\u6587\u4ef6\u7684\u6743\u9650\u6570\u5b57\u5c31\u662f770\u5566\uff01\u53d8\u66f4\u6743\u9650\u7684\u6307\u4ee4chmod\u7684\u8bed\u6cd5\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n<pre class=\"prettyprint prettyprinted\"><span class=\"pln\"> chmod <\/span><span class=\"pun\">[-<\/span><span class=\"pln\">R<\/span><span class=\"pun\">]<\/span><span class=\"pln\"> xyz <\/span><span class=\"pun\">\u6587\u4ef6\u6216\u76ee\u5f55<\/span><\/pre>\n<p>\u9009\u9879\u4e0e\u53c2\u6570\uff1a<\/p>\n<ul>\n<li>xyz : \u5c31\u662f\u521a\u521a\u63d0\u5230\u7684\u6570\u5b57\u7c7b\u578b\u7684\u6743\u9650\u5c5e\u6027\uff0c\u4e3a rwx \u5c5e\u6027\u6570\u503c\u7684\u76f8\u52a0\u3002<\/li>\n<li>-R : \u8fdb\u884c\u9012\u5f52(recursive)\u7684\u6301\u7eed\u53d8\u66f4\uff0c\u4ea6\u5373\u8fde\u540c\u6b21\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6\u90fd\u4f1a\u53d8\u66f4<\/li>\n<\/ul>\n<p>\u4e3e\u4f8b\u6765\u8bf4\uff0c\u5982\u679c\u8981\u5c06.bashrc\u8fd9\u4e2a\u6587\u4ef6\u6240\u6709\u7684\u6743\u9650\u90fd\u8bbe\u5b9a\u542f\u7528\uff0c\u90a3\u4e48\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<pre class=\"prettyprint prettyprinted\"><span class=\"pun\">[<\/span><span class=\"pln\">root@www <\/span><span class=\"pun\">~]#<\/span><span class=\"pln\"> ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">al <\/span><span class=\"pun\">.<\/span><span class=\"pln\">bashrc\r\n<\/span><span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span>  <span class=\"lit\">1<\/span><span class=\"pln\"> root root <\/span><span class=\"lit\">395<\/span> <span class=\"typ\">Jul<\/span>  <span class=\"lit\">4<\/span> <span class=\"lit\">11<\/span><span class=\"pun\">:<\/span><span class=\"lit\">45<\/span> <span class=\"pun\">.<\/span><span class=\"pln\">bashrc\r\n<\/span><span class=\"pun\">[<\/span><span class=\"pln\">root@www <\/span><span class=\"pun\">~]#<\/span><span class=\"pln\"> chmod <\/span><span class=\"lit\">777<\/span> <span class=\"pun\">.<\/span><span class=\"pln\">bashrc\r\n<\/span><span class=\"pun\">[<\/span><span class=\"pln\">root@www <\/span><span class=\"pun\">~]#<\/span><span class=\"pln\"> ls <\/span><span class=\"pun\">-<\/span><span class=\"pln\">al <\/span><span class=\"pun\">.<\/span><span class=\"pln\">bashrc\r\n<\/span><span class=\"pun\">-<\/span><span class=\"pln\">rwxrwxrwx  <\/span><span class=\"lit\">1<\/span><span class=\"pln\"> root root <\/span><span class=\"lit\">395<\/span> <span class=\"typ\">Jul<\/span>  <span class=\"lit\">4<\/span> <span class=\"lit\">11<\/span><span class=\"pun\">:<\/span><span class=\"lit\">45<\/span> <span class=\"pun\">.<\/span><span class=\"pln\">bashrc<\/span><\/pre>\n<p>\u90a3\u5982\u679c\u8981\u5c06\u6743\u9650\u53d8\u6210\u00a0<em>-rwxr-xr&#8211;<\/em>\u00a0\u5462\uff1f\u90a3\u4e48\u6743\u9650\u7684\u5206\u6570\u5c31\u6210\u4e3a [4+2+1][4+0+1][4+0+0]=754\u3002<\/p>\n<h4>\u7b26\u53f7\u7c7b\u578b\u6539\u53d8\u6587\u4ef6\u6743\u9650<\/h4>\n<p>\u8fd8\u6709\u4e00\u4e2a\u6539\u53d8\u6743\u9650\u7684\u65b9\u6cd5\uff0c\u4ece\u4e4b\u524d\u7684\u4ecb\u7ecd\u4e2d\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\uff0c\u57fa\u672c\u4e0a\u5c31\u4e5d\u4e2a\u6743\u9650\u5206\u522b\u662f\uff1a<\/p>\n<ul>\n<li>(1)user<\/li>\n<li>(2)group<\/li>\n<li>(3)others<\/li>\n<\/ul>\n<p>\u90a3\u4e48\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528\u00a0<strong>u, g, o<\/strong>\u00a0\u6765\u4ee3\u8868\u4e09\u79cd\u8eab\u4efd\u7684\u6743\u9650\uff01<\/p>\n<p>\u6b64\u5916\uff0c\u00a0<strong>a<\/strong>\u00a0\u5219\u4ee3\u8868\u00a0<strong>all<\/strong>\uff0c\u5373\u5168\u90e8\u7684\u8eab\u4efd\u3002\u8bfb\u5199\u7684\u6743\u9650\u53ef\u4ee5\u5199\u6210\u00a0<span class=\"marked\">r, w, x<\/span>\uff0c\u4e5f\u5c31\u662f\u53ef\u4ee5\u4f7f\u7528\u4e0b\u8868\u7684\u65b9\u5f0f\u6765\u770b\uff1a<\/p>\n<table class=\"reference\">\n<tbody>\n<tr align=\"center\">\n<td>chmod<\/td>\n<td>u<br \/>\ng<br \/>\no<br \/>\na<\/td>\n<td>+(\u52a0\u5165)<br \/>\n-(\u9664\u53bb)<br \/>\n=(\u8bbe\u5b9a)<\/td>\n<td>r<br \/>\nw<br \/>\nx<\/td>\n<td>\u6587\u4ef6\u6216\u76ee\u5f55<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5982\u679c\u6211\u4eec\u9700\u8981\u5c06\u6587\u4ef6\u6743\u9650\u8bbe\u7f6e\u4e3a\u00a0<strong>-rwxr-xr&#8211;<\/strong>\u00a0\uff0c\u53ef\u4ee5\u4f7f\u7528\u00a0<span class=\"marked\">chmod u=rwx,g=rx,o=r \u6587\u4ef6\u540d<\/span>\u00a0\u6765\u8bbe\u5b9a:<\/p>\n<pre class=\"prettyprint prettyprinted\"><span class=\"com\">#  touch test1    \/\/ \u521b\u5efa test1 \u6587\u4ef6<\/span>\r\n<span class=\"com\"># ls -al test1    \/\/ \u67e5\u770b test1 \u9ed8\u8ba4\u6743\u9650<\/span>\r\n<span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span> <span class=\"lit\">1<\/span><span class=\"pln\"> root root <\/span><span class=\"lit\">0<\/span> <span class=\"typ\">Nov<\/span> <span class=\"lit\">15<\/span> <span class=\"lit\">10<\/span><span class=\"pun\">:<\/span><span class=\"lit\">32<\/span><span class=\"pln\"> test1\r\n<\/span><span class=\"com\"># chmod u=rwx,g=rx,o=r  test1    \/\/ \u4fee\u6539 test1 \u6743\u9650<\/span>\r\n<span class=\"com\"># ls -al test1<\/span>\r\n<span class=\"pun\">-<\/span><span class=\"pln\">rwxr<\/span><span class=\"pun\">-<\/span><span class=\"pln\">xr<\/span><span class=\"pun\">--<\/span> <span class=\"lit\">1<\/span><span class=\"pln\"> root root <\/span><span class=\"lit\">0<\/span> <span class=\"typ\">Nov<\/span> <span class=\"lit\">15<\/span> <span class=\"lit\">10<\/span><span class=\"pun\">:<\/span><span class=\"lit\">32<\/span><span class=\"pln\"> test1<\/span><\/pre>\n<p>\u800c\u5982\u679c\u662f\u8981\u5c06\u6743\u9650\u53bb\u6389\u800c\u4e0d\u6539\u53d8\u5176\u4ed6\u5df2\u5b58\u5728\u7684\u6743\u9650\u5462\uff1f\u4f8b\u5982\u8981\u62ff\u6389\u5168\u90e8\u4eba\u7684\u53ef\u6267\u884c\u6743\u9650\uff0c\u5219\uff1a<\/p>\n<pre class=\"prettyprint prettyprinted\"><span class=\"com\">#  chmod  a-x test1<\/span>\r\n<span class=\"com\"># ls -al test1<\/span>\r\n<span class=\"pun\">-<\/span><span class=\"pln\">rw<\/span><span class=\"pun\">-<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span><span class=\"pln\">r<\/span><span class=\"pun\">--<\/span> <span class=\"lit\">1<\/span><span class=\"pln\"> root root <\/span><span class=\"lit\">0<\/span> <span class=\"typ\">Nov<\/span> <span class=\"lit\">15<\/span> <span class=\"lit\">10<\/span><span class=\"pun\">:<\/span><span class=\"lit\">32<\/span><span class=\"pln\"> test1\r\n<\/span><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Linux\u00a0\u6587\u4ef6\u57fa\u672c\u5c5e\u6027 Linux\u7cfb\u7edf\u662f\u4e00\u79cd\u5178\u578b\u7684\u591a\u7528\u6237\u7cfb\u7edf\uff0c\u4e0d\u540c\u7684\u7528\u6237\u5904\u4e8e\u4e0d\u540c\u7684\u5730\u4f4d\uff0c\u62e5\u6709\u4e0d\u540c\u7684\u6743\u9650\u3002\u4e3a\u4e86 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/b.yesiyu.top\/?p=102\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201cLinux \u6587\u4ef6\u57fa\u672c\u5c5e\u6027\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-102","post","type-post","status-publish","format-standard","hentry","category-liunx-"],"_links":{"self":[{"href":"https:\/\/b.yesiyu.top\/index.php?rest_route=\/wp\/v2\/posts\/102","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/b.yesiyu.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/b.yesiyu.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/b.yesiyu.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/b.yesiyu.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=102"}],"version-history":[{"count":1,"href":"https:\/\/b.yesiyu.top\/index.php?rest_route=\/wp\/v2\/posts\/102\/revisions"}],"predecessor-version":[{"id":103,"href":"https:\/\/b.yesiyu.top\/index.php?rest_route=\/wp\/v2\/posts\/102\/revisions\/103"}],"wp:attachment":[{"href":"https:\/\/b.yesiyu.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/b.yesiyu.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/b.yesiyu.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}