{"id":584,"date":"2023-05-22T22:49:05","date_gmt":"2023-07-22T23:42:38","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%9c%a8shell%e8%84%9a%e6%9c%ac%e4%b8%ad%e5%a6%82%e4%bd%95%e8%af%bb%e5%8f%96%e5%91%bd%e4%bb%a4%e8%a1%8c%e5%8f%82%e6%95%b0%ef%bc%9f\/"},"modified":"2025-08-02T20:19:02","modified_gmt":"2025-08-02T12:19:02","slug":"%e5%9c%a8shell%e8%84%9a%e6%9c%ac%e4%b8%ad%e5%a6%82%e4%bd%95%e8%af%bb%e5%8f%96%e5%91%bd%e4%bb%a4%e8%a1%8c%e5%8f%82%e6%95%b0%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8shell%e8%84%9a%e6%9c%ac%e4%b8%ad%e5%a6%82%e4%bd%95%e8%af%bb%e5%8f%96%e5%91%bd%e4%bb%a4%e8%a1%8c%e5%8f%82%e6%95%b0%ef%bc%9f\/","title":{"rendered":"Shell\u811a\u672c\u8bfb\u53d6\u547d\u4ee4\u884c\u53c2\u6570\u5b8c\u5168\u6307\u5357\uff1aLinux Bash\u5b9e\u7528\u6559\u7a0b"},"content":{"rendered":"<p>\u9605\u8bfb\u7528\u6237\u8f93\u5165\u662f\u7f16\u7a0b\u8fc7\u7a0b\u4e2d\u7684\u91cd\u8981\u73af\u8282\u3002\u5728\u4eca\u5929\u7684\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u5b66\u4e60\u5982\u4f55\u5728shell\u811a\u672c\u4e2d\u8bfb\u53d6\u547d\u4ee4\u884c\u53c2\u6570\u3002\u5bf9\u4e8e\u4efb\u4f55Linux\u7528\u6237\u6765\u8bf4\uff0cshell\u811a\u672c\u90fd\u662f\u4e00\u79cd\u5fc5\u4e0d\u53ef\u5c11\u7684\u5de5\u5177\u3002\u5b83\u4eec\u5728\u81ea\u52a8\u5316\u65e5\u5e38\u4efb\u52a1\u548c\u521b\u5efa\u81ea\u5df1\u7684\u547d\u4ee4\u6216\u5b8f\u65b9\u9762\u626e\u6f14\u7740\u91cd\u8981\u89d2\u8272\u3002<\/p>\n<p>\u8fd9\u4e9bshell\u811a\u672c\u53ef\u4ee5\u901a\u8fc7\u53c2\u6570\u5f62\u5f0f\u63a5\u6536\u7528\u6237\u8f93\u5165\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u4f20\u9012\u53c2\u6570\u7ed9\u4e00\u4e2ashell\u811a\u672c\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u5b83\u4eec\u5728\u811a\u672c\u4e2d\u8fdb\u884c\u672c\u5730\u987a\u5e8f\u5904\u7406\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9b\u53c2\u6570\u6765\u83b7\u53d6\u8f93\u51fa\uff0c\u751a\u81f3\u50cfshell\u811a\u672c\u4e2d\u7684\u53d8\u91cf\u4e00\u6837\u4fee\u6539\u8f93\u51fa\u3002<\/p>\n<h2>\u547d\u4ee4\u884c\u53c2\u6570\u662f\u4ec0\u4e48\uff1f<\/h2>\n<p>\u547d\u4ee4\u884c\u53c2\u6570\u662f\u5728bash 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\u811a\u672c\u4e2d\u7684\u4f7f\u7528\u3002<\/p>\n<h2>Shell\u811a\u672c\u5982\u4f55\u7406\u89e3\u547d\u4ee4\u884c\u53c2\u6570<\/h2>\n<p>\u547d\u4ee4\u884c\u53c2\u6570\u6709\u52a9\u4e8e\u4f7fshell\u811a\u672c\u5bf9\u7528\u6237\u5177\u6709\u4ea4\u4e92\u6027\u3002\u5b83\u4eec\u5e2e\u52a9\u811a\u672c\u8bc6\u522b\u6240\u9700\u7684\u64cd\u4f5c\u6570\u636e\u3002\u56e0\u6b64\uff0c\u547d\u4ee4\u884c\u53c2\u6570\u662f\u4efb\u4f55\u5b9e\u9645\u7684shell\u811a\u672c\u4f7f\u7528\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002<\/p>\n<p>Bash shell\u4e3a\u6307\u5411\u901a\u8fc7shell\u811a\u672c\u4f20\u9012\u7684\u53c2\u6570\u800c\u4fdd\u7559\u4e86\u7279\u6b8a\u53d8\u91cf\u3002Bash\u4ee5\u6570\u5b57\u5f62\u5f0f\u4fdd\u5b58\u8fd9\u4e9b\u53d8\u91cf\uff08$1\uff0c$2\uff0c$3\uff0c&#8230; $n\uff09\u3002<\/p>\n<p>\u5728\u6211\u4eec\u7684Shell\u811a\u672c\u4e2d\uff0c\u7b2c\u4e00\u4e2a\u547d\u4ee4\u884c\u53c2\u6570\u4e3a$1\uff0c\u7b2c\u4e8c\u4e2a\u4e3a$2\uff0c\u7b2c\u4e09\u4e2a\u4e3a$3\u3002\u4e00\u76f4\u6301\u7eed\u5230\u7b2c9\u4e2a\u53c2\u6570\u3002\u53d8\u91cf$0\u5b58\u50a8\u7740\u811a\u672c\u7684\u540d\u79f0\u6216\u547d\u4ee4\u672c\u8eab\u3002<\/p>\n<p>\u6211\u4eec\u8fd8\u6709\u4e00\u4e9b\u7279\u6b8a\u53d8\u91cf\uff0c\u5b83\u4eec\u662f\u4f4d\u7f6e\u53c2\u6570\uff0c\u4f46\u5b83\u4eec\u7684\u529f\u80fd\u4e0e\u6211\u4eec\u7684\u547d\u4ee4\u884c\u53c2\u6570\u7d27\u5bc6\u76f8\u5173\u3002<\/p>\n<p>\u7279\u6b8a\u53d8\u91cf$#\u5b58\u50a8\u7740\u53c2\u6570\u7684\u603b\u6570\u3002\u6211\u4eec\u8fd8\u6709$@\u548c$*\u4f5c\u4e3a\u901a\u914d\u7b26\uff0c\u7528\u4e8e\u8868\u793a\u6240\u6709\u7684\u53c2\u6570\u3002\u6211\u4eec\u4f7f\u7528$$\u6765\u67e5\u627e\u5f53\u524dshell\u811a\u672c\u7684\u8fdb\u7a0bID\uff0c\u800c$?\u53ef\u4ee5\u7528\u6765\u6253\u5370\u811a\u672c\u7684\u9000\u51fa\u7801\u3002<\/p>\n<h2>\u5728Shell\u811a\u672c\u4e2d\u8bfb\u53d6\u547d\u4ee4\u884c\u53c2\u6570<\/h2>\n<p>\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u5bf9Linux\u4e2d\u7684\u547d\u4ee4\u884c\u53c2\u6570\u6709\u4e86\u4e00\u5b9a\u7684\u4e86\u89e3\u3002\u73b0\u5728\u662f\u65f6\u5019\u5c06\u8fd9\u4e9b\u77e5\u8bc6\u5e94\u7528\u5230\u5b9e\u9645\u64cd\u4f5c\u4e2d\u4e86\u3002<\/p>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u901a\u8fc7\u4e00\u4e2a\u793a\u4f8b\u6765\u5b66\u4e60\u5982\u4f55\u5728\u60a8\u7684shell\u811a\u672c\u4e2d\u4f7f\u7528\u547d\u4ee4\u884c\u53c2\u6570\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2ashell\u811a\u672c\u6765\u6f14\u793a\u6211\u4eec\u5728\u524d\u4e00\u90e8\u5206\u4e2d\u8ba8\u8bba\u7684\u6240\u6709\u4fdd\u7559\u53d8\u91cf\u7684\u5de5\u4f5c\u539f\u7406\u3002\u4f7f\u7528nano\u6216\u60a8\u9009\u62e9\u7684\u4efb\u4f55\u9996\u9009\u7f16\u8f91\u5668\uff0c\u5e76\u590d\u5236\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n<p>\u8fd9\u662f\u6211\u4eec\u8ba1\u5212\u7528\u4e8e\u8fd9\u4e2a\u76ee\u7684\u7684Shell\u811a\u672c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token shebang important\">#!\/bin\/sh<\/span>\r\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">\"\u811a\u672c\u540d\u79f0: <span class=\"token variable\">$0<\/span>\"<\/span>\r\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">\"\u811a\u672c\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f <span class=\"token variable\">$1<\/span>\"<\/span>\r\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">\"\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f <span class=\"token variable\">$2<\/span>\"<\/span>\r\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">\"\u5b8c\u6574\u7684\u53c2\u6570\u5217\u8868\u662f <span class=\"token variable\">$@<\/span>\"<\/span>\r\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">\"\u53c2\u6570\u603b\u6570: <span class=\"token variable\">$#<\/span>\"<\/span>\r\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">\"\u8fdb\u7a0bID\u662f <span class=\"token variable\">$$<\/span>\"<\/span>\r\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">\"\u811a\u672c\u7684\u9000\u51fa\u4ee3\u7801: <span class=\"token variable\">$?<\/span>\"<\/span>\r\n<\/code><\/pre>\n<p>\u4e00\u65e6\u6211\u4eec\u5b8c\u6210\u4e86\uff0c\u6211\u4eec\u5c06\u628a\u811a\u672c\u4fdd\u5b58\u4e3aPositionalParameters.sh\uff0c\u5e76\u9000\u51fa\u6211\u4eec\u7684\u6587\u672c\u7f16\u8f91\u5668\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u5c06\u5728\u6211\u4eec\u7684\u7cfb\u7edf\u4e0a\u6253\u5f00\u547d\u4ee4\u884c\uff0c\u5e76\u4f7f\u7528\u4ee5\u4e0b\u53c2\u6570\u8fd0\u884cshell\u811a\u672c\u3002<\/p>\n<pre class=\"post-pre\"><code>.\/PositionalParameters.sh \u5b66\u4e60 \u547d\u4ee4\u884c \u53c2\u6570\r\n<\/code><\/pre>\n<p>\u811a\u672c\u5c06\u4f7f\u7528\u6211\u4eec\u6307\u5b9a\u7684\u53c2\u6570\u8fd0\u884c\uff0c\u5e76\u4f7f\u7528\u4f4d\u7f6e\u53c2\u6570\u751f\u6210\u8f93\u51fa\u3002\u5982\u679c\u60a8\u6309\u7167\u6b65\u9aa4\u6b63\u786e\u64cd\u4f5c\uff0c\u60a8\u5e94\u8be5\u4f1a\u770b\u5230\u4ee5\u4e0b\u5c4f\u5e55\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/656478d1a4b2f92e6c72ab82\/24-0.png\" alt=\"\u8bfb\u53d6\u53c2\u6570\" \/><\/div>\n<p>\u6211\u4eec\u7684\u8f93\u51fa\u901a\u8fc7\u5728\u8c03\u7528\u65f6\u5c06\u4fdd\u7559\u53d8\u91cf\u66ff\u6362\u4e3a\u9002\u5f53\u7684\u53c2\u6570\u6765\u663e\u793a\u6b63\u786e\u7684\u8f93\u51fa\u3002<\/p>\n<p>\u8be5\u8fc7\u7a0b\u5728\u8fdb\u7a0bID 14974\u4e0b\u8fd0\u884c\uff0c\u5e76\u4ee5\u9000\u51fa\u4ee3\u78010\u7ed3\u675f\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u80fd\u591f\u5728Shell\u811a\u672c\u4e2d\u8bfb\u53d6\u547d\u4ee4\u884c\u53c2\u6570\u662f\u4e00\u9879\u91cd\u8981\u6280\u80fd\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u8ba9\u4f60\u521b\u5efa\u811a\u672c\uff0c\u80fd\u591f\u63a5\u53d7\u7528\u6237\u8f93\u5165\u5e76\u6839\u636e\u903b\u8f91\u8def\u5f84\u751f\u6210\u8f93\u51fa\u3002<\/p>\n<p>\u901a\u8fc7\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\uff0c\u4f60\u7684\u811a\u672c\u53ef\u4ee5\u6781\u5927\u5730\u7b80\u5316\u4f60\u6bcf\u5929\u9700\u8981\u5904\u7406\u7684\u91cd\u590d\u4efb\u52a1\uff0c\u521b\u9020\u4f60\u81ea\u5df1\u7684\u547d\u4ee4\u5e76\u4e3a\u4f60\u8282\u7701\u65f6\u95f4\u548c\u7cbe\u529b\u3002<\/p>\n<p>\u6211\u4eec\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u60a8\u4e86\u89e3\u5982\u4f55\u5728shell\u811a\u672c\u4e2d\u8bfb\u53d6\u547d\u4ee4\u884c\u53c2\u6570\u3002\u5982\u679c\u60a8\u6709\u4efb\u4f55\u8bc4\u8bba\u3001\u95ee\u9898\u6216\u5efa\u8bae\uff0c\u8bf7\u968f\u65f6\u5728\u4e0b\u65b9\u7684\u8bc4\u8bba\u4e2d\u8054\u7cfb\u6211\u4eec\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9605\u8bfb\u7528\u6237\u8f93\u5165\u662f\u7f16\u7a0b\u8fc7\u7a0b\u4e2d\u7684\u91cd\u8981\u73af\u8282\u3002\u5728\u4eca\u5929\u7684\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u5b66\u4e60\u5982\u4f55\u5728shell\u811a\u672c\u4e2d\u8bfb\u53d6\u547d\u4ee4\u884c\u53c2\u6570\u3002\u5bf9\u4e8e\u4efb\u4f55L [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1681,483,1682,605,1680],"class_list":{"0":"post-584","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"tag-bash","8":"tag-linux","9":"tag-shell","11":"tag-1680"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Shell\u811a\u672c\u8bfb\u53d6\u547d\u4ee4\u884c\u53c2\u6570\u5b8c\u5168\u6307\u5357\uff1aLinux Bash\u5b9e\u7528\u6559\u7a0b - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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