{"id":812,"date":"2025-07-25T14:34:39","date_gmt":"2025-07-25T06:34:39","guid":{"rendered":"https:\/\/www.hgfwq.com\/blog\/?p=812"},"modified":"2025-07-25T14:34:39","modified_gmt":"2025-07-25T06:34:39","slug":"shell%e4%b8%adfi%e6%98%af%e4%bb%80%e4%b9%88%e6%84%8f%e6%80%9d%e4%bb%a5%e5%8f%8a%e5%9c%a8shell%e8%84%9a%e6%9c%ac%e4%b8%ad%e7%9a%84%e9%87%8d%e8%a6%81%e6%80%a7%e4%b8%8e%e4%bd%bf%e7%94%a8%e6%96%b9","status":"publish","type":"post","link":"https:\/\/www.hgfwq.com\/blog\/812.html","title":{"rendered":"Shell\u4e2dfi\u662f\u4ec0\u4e48\u610f\u601d\u4ee5\u53ca\u5728Shell\u811a\u672c\u4e2d\u7684\u91cd\u8981\u6027\u4e0e\u4f7f\u7528\u65b9\u6cd5"},"content":{"rendered":"

Shell\u811a\u672c\u4e2d\uff0c”fi”\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u5173\u952e\u5b57\uff0c\u5b83\u6807\u5fd7\u7740\u6761\u4ef6\u8bed\u53e5\u6216\u5faa\u73af\u8bed\u53e5\u7684\u7ed3\u675f\u3002\u7b80\u5355\u6765\u8bf4\uff0c”fi”\u5c31\u50cf\u4e00\u4e2a\u53e5\u53f7\uff0c\u7528\u6765\u6807\u8bc6\u4ee3\u7801\u5757\u7684\u8303\u56f4\uff0c\u786e\u4fdd\u4ee3\u7801\u7ed3\u6784\u6e05\u6670\uff0c\u903b\u8f91\u6b63\u786e\u3002<\/p>\n

\"Shell\u4e2dfi\u662f\u4ec0\u4e48\u610f\u601d\u4ee5\u53ca\u5728Shell\u811a\u672c\u4e2d\u7684\u91cd\u8981\u6027\u4e0e\u4f7f\u7528\u65b9\u6cd5\"<\/p>\n<\/p>\n

\u4ec0\u4e48\u662f”fi”\u5728Shell\u811a\u672c\u4e2d\u7684\u4f5c\u7528\uff1f<\/h3>\n<\/p>\n

“fi”\u662fShell\u811a\u672c\u4e2d\u7528\u6765\u7ed3\u675f\u6761\u4ef6\u8bed\u53e5\u7684\u5173\u952e\u5b57\u3002\u5728Shell\u811a\u672c\u4e2d\uff0c\u6761\u4ef6\u8bed\u53e5\u901a\u5e38\u662f\u901a\u8fc7”if”\u3001”elif”\u548c”else”\u6765\u5b9e\u73b0\u7684\u3002\u5f53\u8fd9\u4e9b\u6761\u4ef6\u8bed\u53e5\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u4f7f\u7528”fi”\u6765\u6807\u8bb0\u7ed3\u675f\uff0c\u4ee5\u786e\u4fdd\u811a\u672c\u903b\u8f91\u7684\u5b8c\u6574\u6027\u3002<\/p>\n<\/p>\n

\u5982\u4f55\u4f7f\u7528”fi”\u6765\u7ed3\u675f\u6761\u4ef6\u8bed\u53e5\uff1f<\/h3>\n<\/p>\n

\u8981\u4f7f\u7528”fi”\u7ed3\u675f\u6761\u4ef6\u8bed\u53e5\uff0c\u9996\u5148\u9700\u8981\u6839\u636e\u6761\u4ef6\u7f16\u5199\u76f8\u5e94\u7684”if”\u3001”elif”\u6216”else”\u8bed\u53e5\u3002\u8fd9\u4e9b\u8bed\u53e5\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u7d27\u63a5\u7740\u4f7f\u7528”fi”\u6765\u6807\u8bb0\u7ed3\u675f\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

\n

<\/p>\r\n
if [ $x -gt 10 ]; then<\/p>\r\n
    echo \"x is greater than 10\"<\/p>\r\n
fi<\/p>\r\n
<\/pre>\n<\/p>\n<\/blockquote>\n
\u5728\u5faa\u73af\u8bed\u53e5\u4e2d\uff0c”fi”\u53c8\u662f\u5982\u4f55\u4f7f\u7528\u7684\uff1f<\/h3>\n<\/p>\n
\u5728\u5faa\u73af\u8bed\u53e5\u4e2d\uff0c”fi”\u540c\u6837\u7528\u4e8e\u7ed3\u675f\u5faa\u73af\u3002\u65e0\u8bba\u662f”for”\u3001”while”\u8fd8\u662f”until”\u5faa\u73af\uff0c\u5f53\u5faa\u73af\u4f53\u5185\u7684\u4ee3\u7801\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u4f7f\u7528”fi”\u6765\u7ed3\u675f\u5faa\u73af\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528”while”\u5faa\u73af\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
\n
<\/p>\r\n
while [ $x -gt 0 ]; do<\/p>\r\n
    echo \"x is $x\"<\/p>\r\n
    x=$((x-1))<\/p>\r\n
fi<\/p>\r\n
<\/pre>\n<\/p>\n<\/blockquote>\n
\u5982\u4f55\u7406\u89e3”fi”\u7684\u4f7f\u7528\u573a\u666f\uff1f<\/h3>\n<\/p>\n
\u4ec0\u4e48\u662f\u201cfi\u201d\u7684\u4e3b\u8981\u4f7f\u7528\u573a\u666f\uff1f<\/b><\/p>\n
“fi”\u4e3b\u8981\u7528\u4e8e\u7ed3\u675f\u6761\u4ef6\u8bed\u53e5\u548c\u5faa\u73af\u8bed\u53e5\uff0c\u786e\u4fdd\u4ee3\u7801\u5757\u7684\u7ed3\u6784\u5b8c\u6574\uff0c\u907f\u514d\u903b\u8f91\u9519\u8bef\u3002<\/p>\n
\u4f7f\u7528”fi”\u6709\u4ec0\u4e48\u597d\u5904\uff1f<\/h3>\n<\/p>\n
\u4f7f\u7528\u201cfi\u201d\u6709\u54ea\u4e9b\u597d\u5904\uff1f<\/b><\/p>\n
\u4f7f\u7528”fi”\u53ef\u4ee5\uff1a<\/p>\n
1. \u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u4f7f\u4ee3\u7801\u7ed3\u6784\u66f4\u6e05\u6670\u3002<\/p>\n
2. \u9632\u6b62\u56e0\u9057\u6f0f\u7ed3\u675f\u5173\u952e\u5b57\u800c\u5bfc\u81f4\u7684\u903b\u8f91\u9519\u8bef\u3002<\/p>\n
3. \u786e\u4fddShell\u811a\u672c\u7684\u6b63\u786e\u6267\u884c\u3002<\/p>\n<\/p>\n
\u5728\u7f16\u5199Shell\u811a\u672c\u65f6\uff0c\u5e94\u8be5\u6ce8\u610f\u4ec0\u4e48\uff1f<\/h3>\n<\/p>\n
\u7f16\u5199Shell\u811a\u672c\u65f6\uff0c\u5e94\u8be5\u6ce8\u610f\u4ec0\u4e48\uff1f<\/b><\/p>\n
1. \u786e\u4fdd\u6bcf\u4e2a\u6761\u4ef6\u8bed\u53e5\u548c\u5faa\u73af\u8bed\u53e5\u90fd\u6b63\u786e\u4f7f\u7528”fi”\u7ed3\u675f\u3002<\/p>\n
2. \u4ed4\u7ec6\u68c0\u67e5\u4ee3\u7801\u903b\u8f91\uff0c\u907f\u514d\u56e0\u903b\u8f91\u9519\u8bef\u5bfc\u81f4\u7684\u811a\u672c\u6267\u884c\u5f02\u5e38\u3002<\/p>\n
3. \u4f7f\u7528\u7f29\u8fdb\u6765\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u4f7f\u4ee3\u7801\u7ed3\u6784\u66f4\u52a0\u6e05\u6670\u3002<\/p>\n<\/p>\n
\u603b\u7ed3\u6765\u8bf4\uff0c”fi”\u5728Shell\u811a\u672c\u4e2d\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\uff0c\u5b83\u4e0d\u4ec5\u662f\u7ed3\u675f\u6761\u4ef6\u8bed\u53e5\u548c\u5faa\u73af\u8bed\u53e5\u7684\u5173\u952e\u5b57\uff0c\u4e5f\u662f\u786e\u4fdd\u811a\u672c\u903b\u8f91\u6b63\u786e\u548c\u6267\u884c\u987a\u5229\u7684\u91cd\u8981\u4fdd\u8bc1\u3002<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"
Shell\u811a\u672c\u4e2d\uff0c”fi”\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u5173\u952e\u5b57\uff0c\u5b83\u6807\u5fd7\u7740\u6761\u4ef6\u8bed\u53e5\u6216\u5faa\u73af\u8bed\u53e5\u7684\u7ed3\u675f\u3002\u7b80\u5355\u6765\u8bf4\uff0c”fi”\u5c31\u50cf\u4e00\u4e2a\u53e5\u53f7\uff0c\u7528\u6765\u6807\u8bc6\u4ee3\u7801\u5757\u7684\u8303\u56f4\uff0c\u786e\u4fdd\u4ee3\u7801\u7ed3\u6784\u6e05\u6670\uff0c\u903b\u8f91\u6b63\u786e\u3002 \u4ec0\u4e48\u662f”fi…<\/p>\n","protected":false},"author":1,"featured_media":813,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[364,365,85],"topic":[],"class_list":["post-812","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-haiwai","tag-fi","tag-shell","tag-85"],"_links":{"self":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts\/812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/comments?post=812"}],"version-history":[{"count":1,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts\/812\/revisions"}],"predecessor-version":[{"id":815,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts\/812\/revisions\/815"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/media\/813"}],"wp:attachment":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/media?parent=812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/categories?post=812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/tags?post=812"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/topic?post=812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}