{"id":134,"date":"2023-03-01T19:34:32","date_gmt":"2022-12-19T13:14:19","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e5%9c%a8linux%e4%b8%ad%e4%bd%bf%e7%94%a8shell%e8%84%9a%e6%9c%ac%e6%89%a7%e8%a1%8c%e5%91%bd%e4%bb%a4%e3%80%82\/"},"modified":"2025-08-01T00:25:36","modified_gmt":"2025-07-31T16:25:36","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8linux%e4%b8%ad%e4%bd%bf%e7%94%a8shell%e8%84%9a%e6%9c%ac%e6%89%a7%e8%a1%8c%e5%91%bd%e4%bb%a4%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8linux%e4%b8%ad%e4%bd%bf%e7%94%a8shell%e8%84%9a%e6%9c%ac%e6%89%a7%e8%a1%8c%e5%91%bd%e4%bb%a4%e3%80%82\/","title":{"rendered":"Linux Shell\u811a\u672c\uff1a\u81ea\u52a8\u5316\u547d\u4ee4\u6267\u884c\u4e0e\u9ad8\u6548\u7ba1\u7406\u6307\u5357"},"content":{"rendered":"<h3>\u5f15\u8a00<\/h3>\n<p>Shell \u662f\u4e00\u4e2a\u547d\u4ee4\u884c\u89e3\u91ca\u5668\uff0c\u5141\u8bb8\u7528\u6237\u4e0e\u7cfb\u7edf\u8fdb\u884c\u4ea4\u4e92\u3002\u5b83\u8d1f\u8d23\u63a5\u6536\u7528\u6237\u7684\u8f93\u5165\u5e76\u663e\u793a\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n<p>Shell \u811a\u672c\u662f\u6309\u7167\u6267\u884c\u987a\u5e8f\u7f16\u5199\u7684\u4e00\u7cfb\u5217\u547d\u4ee4\u3002\u8fd9\u4e9b\u811a\u672c\u53ef\u4ee5\u5305\u542b\u51fd\u6570\u3001\u5faa\u73af\u3001\u547d\u4ee4\u548c\u53d8\u91cf\u3002\u811a\u672c\u6709\u52a9\u4e8e\u7b80\u5316\u590d\u6742\u7684\u547d\u4ee4\u5e8f\u5217\u548c\u91cd\u590d\u7684\u4efb\u52a1\u3002<\/p>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u5982\u4f55\u5728 Linux \u547d\u4ee4\u884c\u4e2d\u521b\u5efa\u548c\u6267\u884c Shell \u811a\u672c\u3002<\/p>\n<h2>\u5148\u51b3\u6761\u4ef6<\/h2>\n<p>\u5b8c\u6210\u672c\u6559\u7a0b\u9700\u8981\u4ee5\u4e0b\u51c6\u5907\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>\u719f\u6089\u7ec8\u7aef\u7684\u4f7f\u7528\u3002<\/li>\n<li>\u719f\u6089\u6587\u672c\u7f16\u8f91\u5668\u7684\u4f7f\u7528\u3002<\/li>\n<li>\u719f\u6089 <code>chmod<\/code>\u3001<code>mkdir<\/code> \u548c <code>cd<\/code> \u7b49\u547d\u4ee4\u3002<\/li>\n<\/ul>\n<h2>\u5f00\u59cb\u4f7f\u7528<\/h2>\n<p>Shell \u811a\u672c\u6587\u4ef6\u9700\u8981\u4fdd\u5b58\u4e3a <code>.sh<\/code> \u6269\u5c55\u540d\u3002<\/p>\n<p>\u6587\u4ef6\u9700\u4ee5 Shebang \u884c\uff08<code>#!<\/code>\uff09\u5f00\u5934\uff0c\u4ee5\u544a\u77e5 Linux \u7cfb\u7edf\u7528\u4e8e\u8fd0\u884c\u8be5 Shell \u811a\u672c\u7684\u89e3\u91ca\u5668\u3002<\/p>\n<p>\u5bf9\u4e8e\u652f\u6301 Bash \u7684\u73af\u5883\uff0c\u8bf7\u4f7f\u7528\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token shebang important\">#!\/bin\/bash<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u73af\u5883\u652f\u6301 Shell\uff0c\u8bf7\u4f7f\u7528\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token shebang important\">#!\/bin\/sh<\/span>\r\n<\/code><\/pre>\n<p>\u672c\u6559\u7a0b\u5047\u8bbe\u60a8\u7684\u73af\u5883\u652f\u6301 Bash\u3002<\/p>\n<p>Shell \u811a\u672c\u4e5f\u53ef\u4ee5\u6dfb\u52a0\u6ce8\u91ca\u6765\u63d0\u9ad8\u53ef\u8bfb\u6027\u3002\u4e00\u4e2a\u597d\u7684\u811a\u672c\u603b\u662f\u5305\u542b\u6709\u52a9\u4e8e\u8bfb\u8005\u7406\u89e3\u811a\u672c\u529f\u80fd\u548c\u8bbe\u8ba1\u9009\u62e9\u80cc\u540e\u7406\u7531\u7684\u6ce8\u91ca\u3002<\/p>\n<h2>\u521b\u5efa\u5e76\u8fd0\u884c\u4e00\u4e2a\u57fa\u672c\u7684 Shell \u811a\u672c<\/h2>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528 <code>vi<\/code> \u7f16\u8f91\u5668\u3001<code>cat<\/code> \u547d\u4ee4\u6216\u4efb\u4f55\u6587\u672c\u7f16\u8f91\u5668\u6765\u521b\u5efa\u4e00\u4e2a Shell \u811a\u672c\u3002<\/p>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u5982\u4f55\u4f7f\u7528 <code>vi<\/code> \u521b\u5efa\u4e00\u4e2a Shell \u811a\u672c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">vi<\/span> basic_script.sh<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u5c06\u542f\u52a8 <code>vi<\/code> \u7f16\u8f91\u5668\u5e76\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a <code>basic_script.sh<\/code> \u7684\u6587\u4ef6\u3002<\/p>\n<p>\u7136\u540e\uff0c\u5728\u952e\u76d8\u4e0a\u6309\u4e0b <code>i<\/code> \u952e\u4ee5\u542f\u52a8\u63d2\u5165\u6a21\u5f0f\u3002\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n<div>basic_script.sh<\/div>\n<pre class=\"post-pre\"><code><span class=\"token shebang important\">#!\/bin\/bash<\/span>\r\n<span class=\"token function\">whoami<\/span>\r\n<span class=\"token function\">date<\/span>\r\n<\/code><\/pre>\n<p>\u6b64\u811a\u672c\u8fd0\u884c\u4e86 <code>whoami<\/code> \u548c <code>date<\/code> \u547d\u4ee4\u3002<code>whoami<\/code> \u663e\u793a\u5f53\u524d\u6d3b\u52a8\u7684\u7528\u6237\u540d\uff0c<code>date<\/code> \u663e\u793a\u5f53\u524d\u7cfb\u7edf\u65f6\u95f4\u6233\u3002<\/p>\n<p>\u4fdd\u5b58\u5e76\u9000\u51fa <code>vi<\/code> \u7f16\u8f91\u5668\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>\u6309 <code>ESC<\/code> \u952e<\/li>\n<li>\u8f93\u5165 <code>:<\/code> (\u5192\u53f7\u5b57\u7b26)<\/li>\n<li>\u8f93\u5165 <code>wq<\/code><\/li>\n<li>\u6309 <code>ENTER<\/code> \u952e<\/li>\n<\/ul>\n<p>\u6700\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fd0\u884c\u811a\u672c\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">bash<\/span> basic_script.sh<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u60a8\u53ef\u80fd\u4f1a\u5f97\u5230\u7c7b\u4f3c\u4e0b\u5217\u7684\u8f93\u51fa\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>root Fri Jun 19 16:59:48 UTC 2020<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8f93\u51fa\u7684\u7b2c\u4e00\u884c\u5bf9\u5e94\u4e8e <code>whoami<\/code> \u547d\u4ee4\u3002\u8f93\u51fa\u7684\u7b2c\u4e8c\u884c\u5bf9\u5e94\u4e8e <code>date<\/code> \u547d\u4ee4\u3002<\/p>\n<p>\u60a8\u4e5f\u53ef\u4ee5\u5728\u672a\u6307\u5b9a <code>bash<\/code> \u7684\u60c5\u51b5\u4e0b\u8fd0\u884c\u811a\u672c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">.\/basic_script.sh<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u8fd0\u884c\u6587\u4ef6\u53ef\u80fd\u9700\u8981\u7528\u6237\u5148\u7ed9\u4e88\u6743\u9650\u3002\u4f7f\u7528 <code>bash<\/code> \u8fd0\u884c\u5b83\u4e0d\u9700\u8981\u8fd9\u4e2a\u6743\u9650\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>~bash: .\/basic_script.sh: Permission denied<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p><code>bash \u6587\u4ef6\u540d<\/code> \u547d\u4ee4\u53ea\u9700\u8981\u5bf9\u6587\u4ef6\u7684\u8bfb\u53d6\u6743\u9650\u3002<\/p>\n<p>\u5f53\u4f7f\u7528\u547d\u4ee4 <code>.\/\u6587\u4ef6\u540d<\/code> \u65f6\uff0c\u4f1a\u5c06\u6587\u4ef6\u4f5c\u4e3a\u53ef\u6267\u884c\u6587\u4ef6\u8fd0\u884c\uff0c\u8fd9\u9700\u8981\u6267\u884c\u6743\u9650\u3002<\/p>\n<p>\u8981\u6267\u884c\u811a\u672c\uff0c\u60a8\u9700\u8981\u66f4\u65b0\u6743\u9650\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">chmod<\/span> +x basic_script.sh<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u4e2a\u547d\u4ee4\u4f7f\u7528 <code>chmod<\/code>\uff0c\u5e76\u7ed9\u5f53\u524d\u7528\u6237\u589e\u52a0 <code>x<\/code>\uff08\u53ef\u6267\u884c\uff09\u6743\u9650\u3002<\/p>\n<h2>\u5728 Shell \u811a\u672c\u4e2d\u4f7f\u7528\u53d8\u91cf<\/h2>\n<p>\u811a\u672c\u53ef\u4ee5\u5305\u542b\u7528\u6237\u5b9a\u4e49\u7684\u53d8\u91cf\u3002\u4e8b\u5b9e\u4e0a\uff0c\u968f\u7740\u811a\u672c\u8d8a\u6765\u8d8a\u5927\uff0c\u62e5\u6709\u660e\u786e\u5b9a\u4e49\u4e14\u5177\u6709\u81ea\u63cf\u8ff0\u540d\u79f0\u7684\u53d8\u91cf\u53d8\u5f97\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p>\u5728\u811a\u672c\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\u3002<\/p>\n<div>basic_script.sh<\/div>\n<pre class=\"post-pre\"><code><span class=\"token shebang important\">#!\/bin\/bash<\/span>\r\n<mark><span class=\"token comment\"># \u8fd9\u662f\u4e00\u4e2a\u6ce8\u91ca<\/span><\/mark>\r\n\r\n<mark><span class=\"token comment\"># \u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf<\/span><\/mark>\r\n<mark><span class=\"token assign-left variable\">GREETINGS<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"Hello! How are you\"<\/span><\/mark>\r\n<mark><span class=\"token builtin class-name\">echo<\/span> <span class=\"token variable\">$GREETINGS<\/span><\/mark>\r\n<\/code><\/pre>\n<p><code>GREETINGS<\/code> \u662f\u4e00\u4e2a\u53d8\u91cf\uff0c\u901a\u8fc7 <code>$<\/code> \u7b26\u53f7\u5b9a\u4e49\u548c\u8bbf\u95ee\u3002\u5728\u7ed9\u53d8\u91cf\u8d4b\u503c\u7684\u884c\u91cc\uff0c\u4e0d\u5e94\u8be5\u6709\u7a7a\u683c\u3002<\/p>\n<p>\u8fd0\u884c\u811a\u672c\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">bash<\/span> basic_script.sh<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u4f1a\u6253\u5370\u51fa\u53d8\u91cf\u8d4b\u7684\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Hello! How are you<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5f53\u811a\u672c\u8fd0\u884c\u65f6\uff0c\u4f1a\u5b9a\u4e49 <code>GREETINGS<\/code> \u5e76\u8fdb\u884c\u8bbf\u95ee\u3002<\/p>\n<h2>\u4ece\u547d\u4ee4\u884c\u8bfb\u53d6\u8f93\u5165<\/h2>\n<p>\u4f7f\u7528 Shell \u811a\u672c\u53ef\u4ee5\u4e0e\u547d\u4ee4\u884c\u8fdb\u884c\u4ea4\u4e92\uff0c\u63a5\u53d7\u8f93\u5165\u7684\u80fd\u529b\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528 <code>read<\/code> \u547d\u4ee4\u5c06\u547d\u4ee4\u884c\u8f93\u5165\u5b58\u50a8\u5728\u53d8\u91cf\u4e2d\u3002<\/p>\n<p>\u5728\u811a\u672c\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n<div>basic_script.sh<\/div>\n<pre class=\"post-pre\"><code><span class=\"token shebang important\">#!\/bin\/bash<\/span>\r\n<span class=\"token comment\"># \u8fd9\u662f\u4e00\u4e2a\u6ce8\u91ca<\/span>\r\n\r\n<mark><span class=\"token comment\"># \u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf<\/span><\/mark>\r\n<mark><span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">\"\u4f60\u7684\u540d\u5b57\u662f\u4ec0\u4e48\uff1f\"<\/span><\/mark>\r\n<mark><span class=\"token comment\"># \u8bfb\u53d6\u8f93\u5165<\/span><\/mark>\r\n<mark><span class=\"token builtin class-name\">read<\/span> NAME<\/mark>\r\n<span class=\"token comment\"># \u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf<\/span>\r\n<span class=\"token assign-left variable\">GREETINGS<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"\u4f60\u597d\uff01\u4f60\u600e\u4e48\u6837\uff1f\"<\/span>\r\n<span class=\"token builtin class-name\">echo<\/span> <mark><span class=\"token variable\">$NAME<\/span><\/mark> <span class=\"token variable\">$GREETINGS<\/span>\r\n<\/code><\/pre>\n<p>\u4e00\u4e2a\u53d8\u91cf <code>NAME<\/code> \u88ab\u7528\u4e8e\u4ece\u547d\u4ee4\u884c\u63a5\u6536\u8f93\u5165\u3002\u6b64\u811a\u672c\u7b49\u5f85\u7528\u6237\u63d0\u4f9b <code>NAME<\/code> \u7684\u8f93\u5165\u3002\u7136\u540e\u6253\u5370\u51fa <code>NAME<\/code> \u548c\u95ee\u5019\u8bed\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4f60\u7684\u540d\u5b57\u662f\u4ec0\u4e48\uff1f Sammy Sammy \u4f60\u597d\uff01\u4f60\u600e\u4e48\u6837\uff1f<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u7ed9\u51fa\u4e86\u4e00\u4e2a\u540d\u5b57\u4e3a Sammy \u7684\u63d0\u793a\u3002<\/p>\n<h2>\u5b9a\u4e49\u51fd\u6570<\/h2>\n<p>\u7528\u6237\u53ef\u4ee5\u5728\u811a\u672c\u4e2d\u5b9a\u4e49\u81ea\u5df1\u7684\u51fd\u6570\u3002\u8fd9\u4e9b\u51fd\u6570\u53ef\u4ee5\u63a5\u53d7\u591a\u4e2a\u53c2\u6570\u3002<\/p>\n<p>\u5c06\u4ee5\u4e0b\u5185\u5bb9\u6dfb\u52a0\u5230\u811a\u672c\u4e2d\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token shebang important\">#!\/bin\/bash<\/span>\r\n<span class=\"token comment\"># \u8fd9\u662f\u4e00\u4e2a\u6ce8\u91ca<\/span>\r\n\r\n<span class=\"token comment\"># \u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf<\/span>\r\n<mark><span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">\"\u4f60\u60f3\u521b\u5efa\u7684\u76ee\u5f55\u540d\u79f0\u662f\u4ec0\u4e48\uff1f\"<\/span><\/mark>\r\n<span class=\"token comment\"># \u8bfb\u53d6\u8f93\u5165<\/span>\r\n<span class=\"token builtin class-name\">read<\/span> NAME\r\n\r\n<mark><span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">\"\u6b63\u5728\u521b\u5efa <span class=\"token variable\">$NAME<\/span> ...\"<\/span><\/mark>\r\n<mark><span class=\"token function-name function\">mkcd<\/span> <span class=\"token punctuation\">()<\/span><\/mark>\r\n<mark><span class=\"token punctuation\">{<\/span><\/mark>\r\n  <mark><span class=\"token function\">mkdir<\/span> <span class=\"token string\">\"<span class=\"token variable\">$NAME<\/span>\"<\/span><\/mark>\r\n  <mark><span class=\"token builtin class-name\">cd<\/span> <span class=\"token string\">\"<span class=\"token variable\">$NAME<\/span>\"<\/span><\/mark>\r\n<mark><span class=\"token punctuation\">}<\/span><\/mark>\r\n\r\n<mark>mkcd<\/mark>\r\n<mark><span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">\"\u60a8\u73b0\u5728\u5728 <span class=\"token variable\">$NAME<\/span> \u4e2d\"<\/span><\/mark>\r\n<\/code><\/pre>\n<p>\u8fd9\u4e2a\u811a\u672c\u4f1a\u8981\u6c42\u7528\u6237\u8f93\u5165\u4e00\u4e2a\u6587\u4ef6\u5939\u540d\u79f0\u3002\u63a5\u7740\uff0c\u5b83\u4f1a\u4f7f\u7528 <code>mkdir<\/code> \u521b\u5efa\u8be5\u6587\u4ef6\u5939\uff0c\u5e76\u901a\u8fc7 <code>cd<\/code> \u8fdb\u5165\u5176\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4f60\u60f3\u521b\u5efa\u7684\u76ee\u5f55\u540d\u79f0\u662f\u4ec0\u4e48\uff1f test_dir \u6b63\u5728\u521b\u5efa test_dir &#8230; \u60a8\u73b0\u5728\u5728 test_dir \u4e2d<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7528\u6237\u63d0\u4f9b\u4e86\u8f93\u5165\u201ctest_dir\u201d\u4f5c\u4e3a\u63d0\u793a\u3002\u63a5\u4e0b\u6765\uff0c\u811a\u672c\u4f7f\u7528\u8fd9\u4e2a\u540d\u79f0\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684\u76ee\u5f55\u3002\u6700\u540e\uff0c\u811a\u672c\u5c06\u7528\u6237\u7684\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u66f4\u6539\u4e3a test_dir\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u60a8\u5b66\u4f1a\u4e86\u5982\u4f55\u5728 Linux \u547d\u4ee4\u884c\u4e2d\u521b\u5efa\u548c\u6267\u884c Shell \u811a\u672c\u3002<\/p>\n<p>\u8003\u8651\u4e00\u4e9b\u60a8\u7ecf\u5e38\u6267\u884c\u7684\u91cd\u590d\u6216\u8017\u65f6\u7684\u4efb\u52a1\uff0c\u8fd9\u4e9b\u4efb\u52a1\u53ef\u80fd\u4f1a\u53d7\u76ca\u4e8e\u4e00\u4e2a\u811a\u672c\u3002<\/p>\n<p>\u7ee7\u7eed\u901a\u8fc7\u5b66\u4e60 <code>if-else<\/code>\u3001\u6570\u7ec4\u548c\u547d\u4ee4\u884c\u53c2\u6570\u6765\u63d0\u5347\u60a8\u7684\u5b66\u4e60\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 Shell \u662f\u4e00\u4e2a\u547d\u4ee4\u884c\u89e3\u91ca\u5668\uff0c\u5141\u8bb8\u7528\u6237\u4e0e\u7cfb\u7edf\u8fdb\u884c\u4ea4\u4e92\u3002\u5b83\u8d1f\u8d23\u63a5\u6536\u7528\u6237\u7684\u8f93\u5165\u5e76\u663e\u793a\u8f93\u51fa\u7ed3\u679c\u3002 Shell [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[311,605,246,606,347],"class_list":["post-134","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-linux","tag-shell","tag-246","tag-606","tag-347"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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