{"id":44686,"date":"2024-10-06T17:25:12","date_gmt":"2024-10-06T09:25:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/44686\/"},"modified":"2024-10-06T17:25:12","modified_gmt":"2024-10-06T09:25:12","slug":"linux-%e5%91%bd%e4%bb%a4%ef%bc%9aexport-%e8%a8%ad%e7%bd%ae%e7%92%b0%e5%a2%83%e8%ae%8a%e9%87%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/44686\/","title":{"rendered":"Linux \u547d\u4ee4\uff1aexport &#8211; \u8a2d\u7f6e\u74b0\u5883\u8b8a\u91cf"},"content":{"rendered":"<h1 id=\"linux-%e5%91%bd%e4%bb%a4%ef%bc%9aexport-%e8%a8%ad%e7%bd%ae%e7%92%b0%e5%a2%83%e8%ae%8a%e9%87%8f-HhTYfUtUjb\">Linux \u547d\u4ee4\uff1aexport &#8211; \u8a2d\u7f6e\u74b0\u5883\u8b8a\u91cf<\/h1>\n<p>\u5728Linux\u7cfb\u7d71\u4e2d\uff0c\u74b0\u5883\u8b8a\u91cf\u662f\u7528\u4f86\u5b58\u5132\u7cfb\u7d71\u548c\u7528\u6236\u4fe1\u606f\u7684\u91cd\u8981\u7d44\u4ef6\u3002\u9019\u4e9b\u8b8a\u91cf\u53ef\u4ee5\u5f71\u97ff\u7cfb\u7d71\u7684\u884c\u70ba\uff0c\u4e26\u4e14\u5728\u57f7\u884c\u7a0b\u5e8f\u6642\u63d0\u4f9b\u5fc5\u8981\u7684\u4e0a\u4e0b\u6587\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528<code>export<\/code>\u547d\u4ee4\u4f86\u8a2d\u7f6e\u548c\u7ba1\u7406\u74b0\u5883\u8b8a\u91cf\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%92%b0%e5%a2%83%e8%ae%8a%e9%87%8f%ef%bc%9f-HhTYfUtUjb\">\u4ec0\u9ebc\u662f\u74b0\u5883\u8b8a\u91cf\uff1f<\/h2>\n<p>\u74b0\u5883\u8b8a\u91cf\u662f\u7cfb\u7d71\u4e2d\u7528\u4f86\u5b58\u5132\u4fe1\u606f\u7684\u9375\u503c\u5c0d\u3002\u9019\u4e9b\u8b8a\u91cf\u53ef\u4ee5\u5305\u542b\u7528\u6236\u7684\u8a2d\u7f6e\u3001\u7cfb\u7d71\u8def\u5f91\u3001\u7a0b\u5e8f\u914d\u7f6e\u7b49\u3002\u5e38\u898b\u7684\u74b0\u5883\u8b8a\u91cf\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>PATH<\/code>\uff1a\u6307\u5b9a\u53ef\u57f7\u884c\u6587\u4ef6\u7684\u641c\u7d22\u8def\u5f91\u3002<\/li>\n<li><code>HOME<\/code>\uff1a\u7528\u6236\u7684\u4e3b\u76ee\u9304\u3002<\/li>\n<li><code>SHELL<\/code>\uff1a\u7528\u6236\u7684\u9ed8\u8a8d\u547d\u4ee4\u884c\u89e3\u91cb\u5668\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8-export-%e5%91%bd%e4%bb%a4%e8%a8%ad%e7%bd%ae%e7%92%b0%e5%a2%83%e8%ae%8a%e9%87%8f-HhTYfUtUjb\">\u4f7f\u7528 export \u547d\u4ee4\u8a2d\u7f6e\u74b0\u5883\u8b8a\u91cf<\/h2>\n<p><code>export<\/code>\u547d\u4ee4\u7528\u65bc\u8a2d\u7f6e\u74b0\u5883\u8b8a\u91cf\uff0c\u4f7f\u5176\u5728\u7576\u524d\u6703\u8a71\u53ca\u5176\u5b50\u9032\u7a0b\u4e2d\u53ef\u7528\u3002\u9019\u610f\u5473\u8457\u4e00\u65e6\u8a2d\u7f6e\uff0c\u8a72\u8b8a\u91cf\u5c07\u5728\u6240\u6709\u5f8c\u7e8c\u547d\u4ee4\u4e2d\u53ef\u7528\u3002<\/p>\n<h3 id=\"%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-HhTYfUtUjb\">\u57fa\u672c\u8a9e\u6cd5<\/h3>\n<pre><code>export VARIABLE_NAME=value<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u8a2d\u7f6e\u4e00\u500b\u540d\u70ba<code>MY_VAR<\/code>\u7684\u74b0\u5883\u8b8a\u91cf\uff0c\u5176\u503c\u70ba<code>HelloWorld<\/code>\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>export MY_VAR=HelloWorld<\/code><\/pre>\n<h3 id=\"%e6%aa%a2%e6%9f%a5%e7%92%b0%e5%a2%83%e8%ae%8a%e9%87%8f-HhTYfUtUjb\">\u6aa2\u67e5\u74b0\u5883\u8b8a\u91cf<\/h3>\n<p>\u8a2d\u7f6e\u74b0\u5883\u8b8a\u91cf\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528<code>echo<\/code>\u547d\u4ee4\u4f86\u6aa2\u67e5\u5176\u503c\uff1a<\/p>\n<pre><code>echo $MY_VAR<\/code><\/pre>\n<p>\u57f7\u884c\u4e0a\u8ff0\u547d\u4ee4\u5f8c\uff0c\u7cfb\u7d71\u5c07\u986f\u793a<code>HelloWorld<\/code>\uff0c\u9019\u8868\u660e\u8b8a\u91cf\u5df2\u6210\u529f\u8a2d\u7f6e\u3002<\/p>\n<h3 id=\"%e6%8c%81%e4%b9%85%e5%8c%96%e7%92%b0%e5%a2%83%e8%ae%8a%e9%87%8f-HhTYfUtUjb\">\u6301\u4e45\u5316\u74b0\u5883\u8b8a\u91cf<\/h3>\n<p>\u5982\u679c\u5e0c\u671b\u74b0\u5883\u8b8a\u91cf\u5728\u6bcf\u6b21\u767b\u9304\u6642\u81ea\u52d5\u52a0\u8f09\uff0c\u53ef\u4ee5\u5c07\u5176\u6dfb\u52a0\u5230\u7528\u6236\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u4f8b\u5982<code>~\/.bashrc<\/code>\u6216<code>~\/.bash_profile<\/code>\u3002\u5728\u9019\u4e9b\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>export MY_VAR=HelloWorld<\/code><\/pre>\n<p>\u4fdd\u5b58\u6587\u4ef6\u5f8c\uff0c\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\uff1a<\/p>\n<pre><code>source ~\/.bashrc<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8-export-%e5%91%bd%e4%bb%a4%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-HhTYfUtUjb\">\u4f7f\u7528 export \u547d\u4ee4\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u74b0\u5883\u8b8a\u91cf\u7684\u540d\u7a31\u5fc5\u9808\u9075\u5faa\u547d\u540d\u898f\u5247\uff0c\u901a\u5e38\u7531\u5b57\u6bcd\u3001\u6578\u5b57\u548c\u4e0b\u5283\u7dda\u7d44\u6210\uff0c\u4e14\u4e0d\u80fd\u4ee5\u6578\u5b57\u958b\u982d\u3002<\/li>\n<li>\u74b0\u5883\u8b8a\u91cf\u7684\u503c\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\u3001\u8def\u5f91\u6216\u5176\u4ed6\u985e\u578b\u7684\u6578\u64da\uff0c\u4f46\u5728\u5305\u542b\u7a7a\u683c\u7684\u60c5\u6cc1\u4e0b\uff0c\u61c9\u4f7f\u7528\u5f15\u865f\u5305\u88f9\u3002<\/li>\n<li>\u4f7f\u7528<code>unset<\/code>\u547d\u4ee4\u53ef\u4ee5\u522a\u9664\u5df2\u8a2d\u7f6e\u7684\u74b0\u5883\u8b8a\u91cf\uff0c\u4f8b\u5982\uff1a<code>unset MY_VAR<\/code>\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-HhTYfUtUjb\">\u7d50\u8ad6<\/h2>\n<p>\u5728Linux\u7cfb\u7d71\u4e2d\uff0c\u74b0\u5883\u8b8a\u91cf\u662f\u7ba1\u7406\u7cfb\u7d71\u884c\u70ba\u7684\u91cd\u8981\u5de5\u5177\u3002\u901a\u904e\u4f7f\u7528<code>export<\/code>\u547d\u4ee4\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u8a2d\u7f6e\u548c\u7ba1\u7406\u9019\u4e9b\u8b8a\u91cf\uff0c\u5f9e\u800c\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002\u7121\u8ad6\u662f\u5728\u958b\u767c\u74b0\u5883\u9084\u662f\u751f\u7522\u74b0\u5883\u4e2d\uff0c\u6b63\u78ba\u4f7f\u7528\u74b0\u5883\u8b8a\u91cf\u90fd\u80fd\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u63a7\u5236\u7cfb\u7d71\u884c\u70ba\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc<code>export<\/code>\u547d\u4ee4\u6216\u5176\u4ed6Linux\u547d\u4ee4\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u8003\u616e\u4f7f\u7528<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u4f86\u9032\u884c\u5be6\u9a57\u548c\u5b78\u7fd2\uff0c\u9019\u5c07\u70ba\u60a8\u63d0\u4f9b\u4e00\u500b\u9748\u6d3b\u7684\u74b0\u5883\u4f86\u63a2\u7d22\u66f4\u591a\u7684\u6280\u8853\u77e5\u8b58\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528 Linux \u547d\u4ee4 `export` \u4f86\u8a2d\u7f6e\u548c\u7ba1\u7406\u74b0\u5883\u8b8a\u91cf\uff0c\u63d0\u5347\u7cfb\u7d71\u914d\u7f6e\u548c\u61c9\u7528\u7a0b\u5e8f\u904b\u884c\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-44686","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44686","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=44686"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44686\/revisions"}],"predecessor-version":[{"id":44687,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44686\/revisions\/44687"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=44686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=44686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=44686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}