{"id":210621,"date":"2023-12-22T06:51:17","date_gmt":"2023-12-21T22:51:17","guid":{"rendered":"https:\/\/www.idc.net\/help\/210621\/"},"modified":"2023-12-22T06:51:17","modified_gmt":"2023-12-21T22:51:17","slug":"linux-%e5%91%bd%e4%bb%a4%ef%bc%9aprintenv-%e6%89%93%e5%8d%b0%e5%85%a8%e9%83%a8%e6%88%96%e9%83%a8%e5%88%86%e7%8e%af%e5%a2%83","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/210621\/","title":{"rendered":"Linux \u547d\u4ee4\uff1aprintenv &#8211; \u6253\u5370\u5168\u90e8\u6216\u90e8\u5206\u73af\u5883"},"content":{"rendered":"<p>  <title id=\"linux-%e5%91%bd%e4%bb%a4%ef%bc%9aprintenv-%e6%89%93%e5%8d%b0%e5%85%a8%e9%83%a8%e6%88%96%e9%83%a8%e5%88%86%e7%8e%af%e5%a2%83-puPwMRCezA\">Linux \u547d\u4ee4\uff1aprintenv - \u6253\u5370\u5168\u90e8\u6216\u90e8\u5206\u73af\u5883<\/title><\/p>\n<h1 id=\"linux-%e5%91%bd%e4%bb%a4%ef%bc%9aprintenv-%e6%89%93%e5%8d%b0%e5%85%a8%e9%83%a8%e6%88%96%e9%83%a8%e5%88%86%e7%8e%af%e5%a2%83-puPwMRCezA\">Linux \u547d\u4ee4\uff1aprintenv - \u6253\u5370\u5168\u90e8\u6216\u90e8\u5206\u73af\u5883<\/h1>\n<h2 id=\"%e4%bb%8b%e7%bb%8d-puPwMRCezA\">\u4ecb\u7ecd<\/h2>\n<p>printenv \u547d\u4ee4\u7528\u4e8e\u6253\u5370\u51fa\u5f53\u524d\u7cfb\u7edf\u73af\u5883\u4e2d\u7684\u5168\u90e8\u6216\u90e8\u5206\u53d8\u91cf\u3002\u5728 Linux \u7cfb\u7edf\u4e2d\uff0c\u73af\u5883\u53d8\u91cf\u662f\u4e00\u79cd\u5b58\u50a8\u6709\u5173\u7cfb\u7edf\u73af\u5883\u4fe1\u606f\u7684\u53d8\u91cf\uff0c\u5b83\u4eec\u53ef\u4ee5\u5f71\u54cd\u7cfb\u7edf\u7684\u884c\u4e3a\u548c\u7a0b\u5e8f\u7684\u6267\u884c\u3002\u901a\u8fc7\u4f7f\u7528 printenv \u547d\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u73af\u5883\u4e2d\u5b9a\u4e49\u7684\u6240\u6709\u53d8\u91cf\u53ca\u5176\u5bf9\u5e94\u7684\u503c\u3002<\/p>\n<h2 id=\"%e8%af%ad%e6%b3%95-puPwMRCezA\">\u8bed\u6cd5<\/h2>\n<p>printenv \u547d\u4ee4\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>printenv [OPTION]... [VARIABLE]...<\/code><\/pre>\n<p>\u5176\u4e2d\uff0cOPTION \u662f\u53ef\u9009\u7684\u53c2\u6570\uff0cVARIABLE \u662f\u8981\u6253\u5370\u7684\u73af\u5883\u53d8\u91cf\u7684\u540d\u79f0\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b-puPwMRCezA\">\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528 printenv \u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>$ printenv\n$ printenv PATH\n$ printenv HOME USER<\/code><\/pre>\n<h2 id=\"%e5%b8%b8%e7%94%a8%e9%80%89%e9%a1%b9-puPwMRCezA\">\u5e38\u7528\u9009\u9879<\/h2>\n<ul>\n<li><code>-0, --null<\/code>\uff1a\u4f7f\u7528 null \u5b57\u7b26\uff08\uff09\u4f5c\u4e3a\u53d8\u91cf\u4e4b\u95f4\u7684\u5206\u9694\u7b26\u3002<\/li>\n<li><code>-u, --unset=VARIABLE<\/code>\uff1a\u4ece\u73af\u5883\u4e2d\u79fb\u9664\u6307\u5b9a\u7684\u53d8\u91cf\u3002<\/li>\n<li><code>-v, --version<\/code>\uff1a\u663e\u793a printenv \u547d\u4ee4\u7684\u7248\u672c\u4fe1\u606f\u3002<\/li>\n<li><code>-h, --help<\/code>\uff1a\u663e\u793a printenv \u547d\u4ee4\u7684\u5e2e\u52a9\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%9c%ba%e6%99%af-puPwMRCezA\">\u4f7f\u7528\u573a\u666f<\/h2>\n<p>printenv \u547d\u4ee4\u5728\u4ee5\u4e0b\u573a\u666f\u4e2d\u975e\u5e38\u6709\u7528\uff1a<\/p>\n<ul>\n<li>\u67e5\u770b\u7cfb\u7edf\u73af\u5883\u53d8\u91cf\uff1a\u901a\u8fc7\u8fd0\u884c printenv \u547d\u4ee4\uff0c\u53ef\u4ee5\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u73af\u5883\u4e2d\u5b9a\u4e49\u7684\u6240\u6709\u53d8\u91cf\uff0c\u5305\u62ec PATH\u3001HOME\u3001USER \u7b49\u3002<\/li>\n<li>\u8c03\u8bd5\u811a\u672c\uff1a\u5728\u7f16\u5199\u548c\u8c03\u8bd5 Shell \u811a\u672c\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 printenv \u547d\u4ee4\u6765\u68c0\u67e5\u811a\u672c\u4e2d\u4f7f\u7528\u7684\u73af\u5883\u53d8\u91cf\u662f\u5426\u6b63\u786e\u8bbe\u7f6e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%80%bb%e7%bb%93-puPwMRCezA\">\u603b\u7ed3<\/h2>\n<p>printenv \u547d\u4ee4\u662f\u4e00\u4e2a\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u73af\u5883\u4e2d\u5b9a\u4e49\u7684\u6240\u6709\u53d8\u91cf\u3002\u901a\u8fc7\u4f7f\u7528 printenv \u547d\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u5feb\u901f\u4e86\u89e3\u7cfb\u7edf\u7684\u73af\u5883\u914d\u7f6e\uff0c\u4ee5\u53ca\u5728\u7f16\u5199\u548c\u8c03\u8bd5\u811a\u672c\u65f6\u68c0\u67e5\u73af\u5883\u53d8\u91cf\u7684\u8bbe\u7f6e\u60c5\u51b5\u3002<\/p>\n<h2 id=\"%e9%a6%99%e6%b8%af%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%a6%96%e9%80%89%e5%90%8e%e6%b5%aa%e4%ba%91-puPwMRCezA\">\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91<\/h2>\n<p>\u540e\u6d6a\u4e91\u662f\u4e00\u5bb6\u4e13\u4e1a\u7684\u4e91\u8ba1\u7b97\u516c\u53f8\uff0c\u63d0\u4f9b\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u548c\u4e91\u670d\u52a1\u5668\u7b49\u4ea7\u54c1\u3002\u4f5c\u4e3a\u9999\u6e2f\u670d\u52a1\u5668\u7684\u9996\u9009\u54c1\u724c\uff0c\u540e\u6d6a\u4e91\u63d0\u4f9b\u9ad8\u6027\u80fd\u3001\u7a33\u5b9a\u53ef\u9760\u7684\u670d\u52a1\u5668\u89e3\u51b3\u65b9\u6848\uff0c\u6ee1\u8db3\u7528\u6237\u5bf9\u4e8e\u670d\u52a1\u5668\u8d44\u6e90\u7684\u9700\u6c42\u3002\u5982\u679c\u60a8\u9700\u8981\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u8bbf\u95ee\u540e\u6d6a\u4e91\u7684\u5b98\u7f51\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff1a<a href=\"https:\/\/idc.net\">https:\/\/idc.net<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux \u547d\u4ee4\uff1aprintenv - \u6253\u5370\u5168\u90e8\u6216\u90e8\u5206\u73af\u5883 Linux \u547d\u4ee4\uff1aprintenv - \u6253\u5370\u5168\u90e8\u6216 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-210621","post","type-post","status-publish","format-standard","hentry","category-centos"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/210621","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=210621"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/210621\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=210621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=210621"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=210621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}