{"id":210620,"date":"2023-12-22T06:50:17","date_gmt":"2023-12-21T22:50:17","guid":{"rendered":"https:\/\/www.idc.net\/help\/210620\/"},"modified":"2023-12-22T06:50:17","modified_gmt":"2023-12-21T22:50:17","slug":"linux-%e5%91%bd%e4%bb%a4%ef%bc%9aunset-%e5%88%a0%e9%99%a4%e5%8f%98%e9%87%8f%e6%88%96%e5%87%bd%e6%95%b0%e5%90%8d","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/210620\/","title":{"rendered":"Linux \u547d\u4ee4\uff1aunset &#8211; \u5220\u9664\u53d8\u91cf\u6216\u51fd\u6570\u540d"},"content":{"rendered":"<p><title id=\"linux-%e5%91%bd%e4%bb%a4%ef%bc%9aunset-%e5%88%a0%e9%99%a4%e5%8f%98%e9%87%8f%e6%88%96%e5%87%bd%e6%95%b0%e5%90%8d-TTJBfsHliJ\">Linux \u547d\u4ee4\uff1aunset - \u5220\u9664\u53d8\u91cf\u6216\u51fd\u6570\u540d<\/title><\/p>\n<h1 id=\"linux-%e5%91%bd%e4%bb%a4%ef%bc%9aunset-%e5%88%a0%e9%99%a4%e5%8f%98%e9%87%8f%e6%88%96%e5%87%bd%e6%95%b0%e5%90%8d-TTJBfsHliJ\">Linux \u547d\u4ee4\uff1aunset - \u5220\u9664\u53d8\u91cf\u6216\u51fd\u6570\u540d<\/h1>\n<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0cunset\u547d\u4ee4\u7528\u4e8e\u5220\u9664\u5df2\u5b9a\u4e49\u7684\u53d8\u91cf\u6216\u51fd\u6570\u540d\u3002\u5f53\u6211\u4eec\u4e0d\u518d\u9700\u8981\u67d0\u4e2a\u53d8\u91cf\u6216\u51fd\u6570\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528unset\u547d\u4ee4\u5c06\u5176\u4ece\u5185\u5b58\u4e2d\u5220\u9664\uff0c\u4ee5\u91ca\u653e\u8d44\u6e90\u3002<\/p>\n<h2 id=\"%e8%af%ad%e6%b3%95-TTJBfsHliJ\">\u8bed\u6cd5<\/h2>\n<p>unset\u547d\u4ee4\u7684\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>\nunset [\u9009\u9879] [\u53d8\u91cf\u540d]\n<\/pre>\n<p>\u9009\u9879\uff1a<\/p>\n<ul>\n<li><code>-v<\/code>\uff1a\u5220\u9664\u53d8\u91cf\u3002<\/li>\n<li><code>-f<\/code>\uff1a\u5220\u9664\u51fd\u6570\u3002<\/li>\n<\/ul>\n<p>\u53d8\u91cf\u540d\uff1a\u8981\u5220\u9664\u7684\u53d8\u91cf\u6216\u51fd\u6570\u540d\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b-TTJBfsHliJ\">\u793a\u4f8b<\/h2>\n<p>\u4e0b\u9762\u662f\u4e00\u4e9b\u4f7f\u7528unset\u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b1%ef%bc%9a%e5%88%a0%e9%99%a4%e5%8f%98%e9%87%8f-TTJBfsHliJ\">\u793a\u4f8b1\uff1a\u5220\u9664\u53d8\u91cf<\/h3>\n<p>\u5047\u8bbe\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a<code>my_var<\/code>\u7684\u53d8\u91cf\uff0c\u5e76\u7ed9\u5b83\u8d4b\u4e86\u4e00\u4e2a\u503c\uff1a<\/p>\n<pre>\nmy_var=\"Hello, World!\"\n<\/pre>\n<p>\u8981\u5220\u9664\u8fd9\u4e2a\u53d8\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528unset\u547d\u4ee4\uff1a<\/p>\n<pre>\nunset my_var\n<\/pre>\n<p>\u73b0\u5728\uff0c<code>my_var<\/code>\u53d8\u91cf\u5df2\u7ecf\u88ab\u5220\u9664\u4e86\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b2%ef%bc%9a%e5%88%a0%e9%99%a4%e5%87%bd%e6%95%b0-TTJBfsHliJ\">\u793a\u4f8b2\uff1a\u5220\u9664\u51fd\u6570<\/h3>\n<p>\u9664\u4e86\u5220\u9664\u53d8\u91cf\uff0cunset\u547d\u4ee4\u8fd8\u53ef\u4ee5\u5220\u9664\u5df2\u5b9a\u4e49\u7684\u51fd\u6570\u3002\u5047\u8bbe\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a<code>my_func<\/code>\u7684\u51fd\u6570\uff1a<\/p>\n<pre>\nmy_func() {\n  echo \"This is my function.\"\n}\n<\/pre>\n<p>\u8981\u5220\u9664\u8fd9\u4e2a\u51fd\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528unset\u547d\u4ee4\uff1a<\/p>\n<pre>\nunset -f my_func\n<\/pre>\n<p>\u73b0\u5728\uff0c<code>my_func<\/code>\u51fd\u6570\u5df2\u7ecf\u88ab\u5220\u9664\u4e86\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a1%b9-TTJBfsHliJ\">\u6ce8\u610f\u4e8b\u9879<\/h2>\n<p>\u5728\u4f7f\u7528unset\u547d\u4ee4\u5220\u9664\u53d8\u91cf\u6216\u51fd\u6570\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u8981\u5220\u9664\u7684\u53d8\u91cf\u6216\u51fd\u6570\u4e0d\u5b58\u5728\uff0cunset\u547d\u4ee4\u4e0d\u4f1a\u62a5\u9519\u3002<\/li>\n<li>\u5220\u9664\u53d8\u91cf\u6216\u51fd\u6570\u540e\uff0c\u4e4b\u524d\u5b58\u50a8\u7684\u503c\u6216\u51fd\u6570\u5b9a\u4e49\u5c06\u65e0\u6cd5\u518d\u88ab\u8bbf\u95ee\u3002<\/li>\n<li>\u5220\u9664\u53d8\u91cf\u6216\u51fd\u6570\u53ea\u662f\u5c06\u5176\u4ece\u5185\u5b58\u4e2d\u5220\u9664\uff0c\u5e76\u4e0d\u4f1a\u5220\u9664\u5176\u5728\u811a\u672c\u6216\u7a0b\u5e8f\u4e2d\u7684\u5b9a\u4e49\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%80%bb%e7%bb%93-TTJBfsHliJ\">\u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7unset\u547d\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u65b9\u4fbf\u5730\u5220\u9664\u5df2\u5b9a\u4e49\u7684\u53d8\u91cf\u6216\u51fd\u6570\uff0c\u4ee5\u91ca\u653e\u7cfb\u7edf\u8d44\u6e90\u3002\u4f7f\u7528unset\u547d\u4ee4\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u53d8\u91cf\u6216\u51fd\u6570\u7684\u5b58\u5728\u4e0e\u5426\uff0c\u4ee5\u53ca\u5220\u9664\u540e\u5bf9\u811a\u672c\u6216\u7a0b\u5e8f\u7684\u5f71\u54cd\u3002<\/p>\n<h3 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-TTJBfsHliJ\">\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91<\/h3>\n<p>\u540e\u6d6a\u4e91\u662f\u4e00\u5bb6\u4e13\u4e1a\u7684\u4e91\u8ba1\u7b97\u516c\u53f8\uff0c\u63d0\u4f9b\u9ad8\u6027\u80fd\u7684\u9999\u6e2f\u670d\u52a1\u5668\u3002\u65e0\u8bba\u60a8\u662f\u4e2a\u4eba\u7528\u6237\u8fd8\u662f\u4f01\u4e1a\u7528\u6237\uff0c\u540e\u6d6a\u4e91\u90fd\u80fd\u4e3a\u60a8\u63d0\u4f9b\u7a33\u5b9a\u53ef\u9760\u7684\u9999\u6e2f\u670d\u52a1\u5668\u89e3\u51b3\u65b9\u6848\u3002\u6b22\u8fce\u8bbf\u95ee<a href=\"https:\/\/idc.net\">\u540e\u6d6a\u4e91\u5b98\u7f51<\/a>\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux \u547d\u4ee4\uff1aunset - \u5220\u9664\u53d8\u91cf\u6216\u51fd\u6570\u540d Linux \u547d\u4ee4\uff1aunset - \u5220\u9664\u53d8\u91cf\u6216\u51fd\u6570\u540d \u5728Li [&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-210620","post","type-post","status-publish","format-standard","hentry","category-centos"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/210620","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=210620"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/210620\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=210620"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=210620"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=210620"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}