{"id":10055,"date":"2024-02-18T03:26:33","date_gmt":"2024-02-17T19:26:33","guid":{"rendered":"https:\/\/bohu.net\/blog\/?p=10055"},"modified":"2024-02-29T10:45:24","modified_gmt":"2024-02-29T02:45:24","slug":"%e4%bd%bf%e7%94%a8-update-alternatives-%e5%91%bd%e4%bb%a4%e5%88%87%e6%8d%a2%e8%bd%af%e4%bb%b6%e7%89%88%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/www.bohu.net\/blog\/10055\/","title":{"rendered":"\u4f7f\u7528 update-alternatives \u547d\u4ee4\u5207\u6362\u8f6f\u4ef6\u7248\u672c"},"content":{"rendered":"\n<p>update-alternatives \u7684\u529f\u80fd\uff0c\u7c7b\u4f3c\u4e8e\u5728\u684c\u9762\u7cfb\u7edf\u4e0a\u8bbe\u7f6e\u9ed8\u8ba4\u6253\u5f00\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># update-alternatives --help\n\u7528\u6cd5\uff1aupdate-alternatives [&lt;\u9009\u9879&gt; ...] &lt;\u547d\u4ee4&gt;\n\n\u547d\u4ee4\uff1a\n  --install &lt;\u94fe\u63a5&gt; &lt;\u540d\u79f0&gt; &lt;\u8def\u5f84&gt; &lt;\u4f18\u5148\u7ea7&gt;\n    [--slave &lt;\u94fe\u63a5&gt; &lt;\u540d\u79f0&gt; &lt;\u8def\u5f84&gt;] ...\n                           \u5728\u7cfb\u7edf\u4e2d\u52a0\u5165\u4e00\u7ec4\u5019\u9009\u9879\u3002\n  --remove &lt;\u540d\u79f0&gt; &lt;\u8def\u5f84&gt;   \u4ece &lt;\u540d\u79f0&gt; \u66ff\u6362\u7ec4\u4e2d\u53bb\u9664 &lt;\u8def\u5f84&gt; \u9879\u3002\n  --remove-all &lt;\u540d\u79f0&gt;      \u4ece\u66ff\u6362\u7cfb\u7edf\u4e2d\u5220\u9664 &lt;\u540d\u79f0&gt; \u66ff\u6362\u7ec4\u3002\n  --auto &lt;\u540d\u79f0&gt;            \u5c06 &lt;\u540d\u79f0&gt; \u7684\u4e3b\u94fe\u63a5\u5207\u6362\u5230\u81ea\u52a8\u6a21\u5f0f\u3002\n  --display &lt;\u540d\u79f0&gt;         \u663e\u793a\u5173\u4e8e &lt;\u540d\u79f0&gt; \u66ff\u6362\u7ec4\u7684\u4fe1\u606f\u3002\n  --query &lt;\u540d\u79f0&gt;           \u673a\u5668\u53ef\u8bfb\u7248\u7684 --display &lt;\u540d\u79f0&gt;.\n  --list &lt;\u540d\u79f0&gt;            \u5217\u51fa &lt;\u540d\u79f0&gt; \u66ff\u6362\u7ec4\u4e2d\u6240\u6709\u7684\u53ef\u7528\u5019\u9009\u9879\u3002\n  --get-selections         \u5217\u51fa\u4e3b\u8981\u5019\u9009\u9879\u540d\u79f0\u4ee5\u53ca\u5b83\u4eec\u7684\u72b6\u6001\u3002\n  --set-selections         \u4ece\u6807\u51c6\u8f93\u5165\u4e2d\u8bfb\u5165\u5019\u9009\u9879\u7684\u72b6\u6001\u3002\n  --config &lt;\u540d\u79f0&gt;          \u5217\u51fa &lt;\u540d\u79f0&gt; \u66ff\u6362\u7ec4\u4e2d\u7684\u53ef\u9009\u9879\uff0c\u5e76\u5c31\u4f7f\u7528\u5176\u4e2d\n                           \u54ea\u4e00\u4e2a\uff0c\u5f81\u8be2\u7528\u6237\u7684\u610f\u89c1\u3002\n  --set &lt;\u540d\u79f0&gt; &lt;\u8def\u5f84&gt;      \u5c06 &lt;\u8def\u5f84&gt; \u8bbe\u7f6e\u4e3a &lt;\u540d\u79f0&gt; \u7684\u5019\u9009\u9879\u3002\n  --all                    \u5bf9\u6240\u6709\u53ef\u9009\u9879\u4e00\u4e00\u8c03\u7528 --config \u547d\u4ee4\u3002\n\n&lt;\u94fe\u63a5&gt; \u662f\u6307\u5411 \/etc\/alternatives\/&lt;\u540d\u79f0&gt; \u7684\u7b26\u53f7\u94fe\u63a5\u3002\n    (\u5982 \/usr\/bin\/pager)\n&lt;\u540d\u79f0&gt; \u662f\u8be5\u94fe\u63a5\u66ff\u6362\u7ec4\u7684\u4e3b\u63a7\u540d\u3002\n    (\u5982 pager)\n&lt;\u8def\u5f84&gt; \u662f\u5019\u9009\u9879\u76ee\u6807\u6587\u4ef6\u7684\u4f4d\u7f6e\u3002\n    (\u5982 \/usr\/bin\/less)\n&lt;\u4f18\u5148\u7ea7&gt; \u662f\u4e00\u4e2a\u6574\u6570\uff0c\u5728\u81ea\u52a8\u6a21\u5f0f\u4e0b\uff0c\u8fd9\u4e2a\u6570\u5b57\u8d8a\u9ad8\u7684\u9009\u9879\uff0c\u5176\u4f18\u5148\u7ea7\u4e5f\u5c31\u8d8a\u9ad8\u3002\n\n\u9009\u9879\uff1a\n  --altdir &lt;\u76ee\u5f55&gt;          \u6539\u53d8\u5019\u9009\u9879\u76ee\u5f55\u3002\n                             \uff08\u9ed8\u8ba4\u662f \/etc\/alternatives\uff09\u3002\n  --admindir &lt;\u76ee\u5f55&gt;        \u8bbe\u7f6e statoverride \u6587\u4ef6\u7684\u76ee\u5f55\u3002\n                             \uff08\u9ed8\u8ba4\u662f \/var\/lib\/dpkg\/alternatives\uff09\u3002\n  --instdir &lt;\u76ee\u5f55&gt;         \u6539\u53d8\u5b89\u88c5\u76ee\u5f55\u3002\n  --root &lt;\u76ee\u5f55&gt;            \u6539\u53d8\u6587\u4ef6\u7cfb\u7edf\u6839\u76ee\u5f55\u3002\n  --log &lt;\u6587\u4ef6&gt;             \u6539\u53d8\u65e5\u5fd7\u6587\u4ef6\u3002\n  --force                  \u5141\u8bb8\u4f7f\u7528\u5019\u9009\u9879\u94fe\u63a5\u66ff\u6362\u6587\u4ef6\u3002\n  --skip-auto              \u5728\u81ea\u52a8\u6a21\u5f0f\u4e2d\u8df3\u8fc7\u8bbe\u7f6e\u6b63\u786e\u5019\u9009\u9879\u7684\u63d0\u793a\n                           (\u53ea\u4e0e --config \u6709\u5173)\n  --quiet                  \u5b89\u9759\u6a21\u5f0f\uff0c\u8f93\u51fa\u5c3d\u53ef\u80fd\u5c11\u7684\u4fe1\u606f\u3002\n  --verbose                \u542f\u7528\u8be6\u7ec6\u8f93\u51fa\u3002\n  --debug                  \u8c03\u8bd5\u8f93\u51fa\uff0c\u4fe1\u606f\u66f4\u591a\u3002\n  --help                   \u663e\u793a\u672c\u5e2e\u52a9\u4fe1\u606f\u3002\n  --version                \u663e\u793a\u7248\u672c\u4fe1\u606f\u3002<\/pre>\n\n\n\n<p>\u6ce8\u518c\u8f6f\u4ef6\uff1a <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-bright-blue-color\">update-alternatives &#8211;install<\/mark> <\/p>\n\n\n\n<p>\u4ee5jdk\u4e3a\u4f8b\uff0c\u5b89\u88c5\u4e86jdk\u4ee5\u540e\uff0c\u5148\u8981\u5728update-alternatives\u5de5\u5177\u4e2d\u6ce8\u518c\uff1b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># update-alternatives --install \/usr\/bin\/java java \/opt\/jdk1.8.0_91\/bin\/java 200\n# update-alternatives --install \/usr\/bin\/java java \/opt\/jdk1.8.0_111\/bin\/java 300<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u4e2a\u53c2\u6570\uff1a<code>--install<\/code>\u8868\u793a\u5411 update-alternatives \u6ce8\u518c\u670d\u52a1\u540d\u3002<\/li>\n\n\n\n<li>\u7b2c\u4e8c\u4e2a\u53c2\u6570\uff1a\u662f\u6ce8\u518c\u6700\u7ec8\u5730\u5740\uff0c\u6210\u529f\u540e\u5c06\u4f1a\u628a\u547d\u4ee4\u5728\u8fd9\u4e2a\u56fa\u5b9a\u7684\u76ee\u7684\u5730\u5740\u505a\u771f\u5b9e\u547d\u4ee4\u7684\u8f6f\u94fe\uff0c\u4ee5\u540e\u7ba1\u7406\u5c31\u662f\u7ba1\u7406\u8fd9\u4e2a\u8f6f\u94fe\uff1b<\/li>\n\n\n\n<li>\u7b2c\u4e09\u4e2a\u53c2\u6570\uff1a\u670d\u52a1\u540d\uff0c\u4ee5\u540e\u7ba1\u7406\u65f6\u4ee5\u5b83\u4e3a\u5173\u8054\u4f9d\u636e\u3002<\/li>\n\n\n\n<li>\u7b2c\u56db\u4e2a\u53c2\u6570\uff1a\u88ab\u7ba1\u7406\u7684\u547d\u4ee4\u7edd\u5bf9\u8def\u5f84\u3002<\/li>\n\n\n\n<li>\u7b2c\u4e94\u4e2a\u53c2\u6570\uff1a\u4f18\u5148\u7ea7\uff0c\u6570\u5b57\u8d8a\u5927\u4f18\u5148\u7ea7\u8d8a\u9ad8\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-bright-blue-color\">\u5e38\u7528\u793a\u4f8b<\/mark><\/h4>\n\n\n\n<p>\u663e\u793a\u7a0b\u5e8f\u7684\u53ef\u66ff\u6362\u4fe1\u606f\uff1a<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-bright-blue-color\">update-alternatives &#8211;display<\/mark> &lt;\u540d\u79f0&gt;<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code> # \u663e\u793aPHP\u7a0b\u5e8f\u7684\u53ef\u66ff\u6362\u4fe1\u606f\n<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-bright-blue-color\">update-alternatives --display php<\/mark>\n\nphp - manual mode\n  link best version is \/usr\/bin\/php8.3\n  link currently points to \/usr\/bin\/php8.2\n  link php is \/usr\/bin\/php\n  slave php.1.gz is \/usr\/share\/man\/man1\/php.1.gz\n\/usr\/bin\/php8.2 - priority 82\n  slave php.1.gz: \/usr\/share\/man\/man1\/php8.2.1.gz\n\/usr\/bin\/php8.3 - priority 83\n  slave php.1.gz: \/usr\/share\/man\/man1\/php8.3.1.gz<\/code><\/pre>\n\n\n\n<p>\u6ce8\u518c\u6dfb\u52a0\u7a0b\u5e8f\u7684\u53ef\u66ff\u6362\u4fe1\u606f\uff1a<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-bright-blue-color\">update-alternatives &#8211;install<\/mark> &lt;\u540d\u79f0><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \u8bbe\u7f6ePHP\nupdate-alternatives --install \/usr\/bin\/php php \/usr\/local\/lsws\/lsphp74\/bin\/php 74\r\nupdate-alternatives --install \/usr\/bin\/php php \/usr\/local\/lsws\/lsphp81\/bin\/php 81\r\nupdate-alternatives --install \/usr\/bin\/php php \/usr\/local\/lsws\/lsphp82\/bin\/php 82<\/code><\/pre>\n\n\n\n<p>\u5217\u51fa \u7a0b\u5e8f\u66ff\u6362\u7ec4\u4e2d\u6240\u6709\u7684\u53ef\u7528\u9009\u9879\uff1a<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-bright-blue-color\">update-alternatives &#8211;list<\/mark> &lt;\u540d\u79f0>           <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-bright-blue-color\">update-alternatives --list php<\/mark>\n\n\/usr\/bin\/php8.2\n\/usr\/bin\/php8.3 <\/code><\/pre>\n\n\n\n<p>\u4ea4\u4e92\u5f0f\u4fee\u6539\uff1a<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-bright-blue-color\">update-alternatives &#8211;config<\/mark> &lt;\u540d\u79f0&gt; \u663e\u793a\u53ef\u7528\u9009\u9879\u7684\u5217\u8868\uff0c\u9009\u62e9\u5bf9\u5e94\u7684\u7d22\u5f15\u786e\u8ba4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#\u8bbe\u7f6e\u9ed8\u8ba4\u6d4f\u89c8\u5668\n<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-bright-blue-color\">update-alternatives --config www-browser<\/mark> \n\nThere is 1 choice for the alternative www-browser (providing \/usr\/bin\/www-browser).\n\n  Selection    Path            Priority   Status\n------------------------------------------------------------\n* 0            \/usr\/bin\/w3m     25        auto mode\n  1            \/usr\/bin\/w3m     25        manual mode\n\nPress &lt;enter&gt; to keep the current choice&#91;*], or type selection number:\n\n#\u8bbe\u7f6e\u9ed8\u8ba4\u4f7f\u7528\u7684php\u7248\u672c\n<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-bright-blue-color\">update-alternatives --config php<\/mark>\n\nThere are 2 choices for the alternative php (providing \/usr\/bin\/php).\n\n  Selection    Path             Priority   Status\n------------------------------------------------------------\n  0            \/usr\/bin\/php8.3   83        auto mode\n* 1            \/usr\/bin\/php8.2   82        manual mode\n  2            \/usr\/bin\/php8.3   83        manual mode\n\nPress &lt;enter&gt; to keep the current choice&#91;*], or type selection number: 1<\/code><\/pre>\n\n\n\n<p>\u5220\u9664\u66ff\u4ee3\u65b9\u6848<em><\/em><a href=\"https:\/\/www.baeldung.com\/linux\/update-alternatives-command#3-deleting-alternative-with-remove\"><\/a><\/p>\n\n\n\n<p>\u7528&nbsp;remove&nbsp;\u53bb\u6389\u7f16\u8f91\u5668\u7ec4\u4e2d\u7684\u5fae\u66ff\u4ee3\u54c1\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>update-alternatives --remove editor \/usr\/bin\/micro<\/code><\/pre>\n\n\n\n<p>\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u4e0b\u9762\u7684\u5168\u90e8\u6e05\u9664\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>update-alternatives --remove-all java<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>update-alternatives \u7684\u529f\u80fd\uff0c\u7c7b\u4f3c\u4e8e\u5728\u684c\u9762\u7cfb\u7edf\u4e0a\u8bbe\u7f6e\u9ed8\u8ba4\u6253\u5f00\u7a0b\u5e8f\u3002 # update-alt &hellip; <a href=\"https:\/\/www.bohu.net\/blog\/10055\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201c\u4f7f\u7528 update-alternatives \u547d\u4ee4\u5207\u6362\u8f6f\u4ef6\u7248\u672c\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[746,6,10,693,26,29],"tags":[229,771,774,773,772],"class_list":["post-10055","post","type-post","status-publish","format-standard","hentry","category-bash","category-linux","category-vps","category-web","category-26","category-29","tag-linux","tag-update-alternatives","tag-php","tag-773","tag-772"],"_links":{"self":[{"href":"https:\/\/www.bohu.net\/blog\/wp-json\/wp\/v2\/posts\/10055","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bohu.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bohu.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bohu.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bohu.net\/blog\/wp-json\/wp\/v2\/comments?post=10055"}],"version-history":[{"count":5,"href":"https:\/\/www.bohu.net\/blog\/wp-json\/wp\/v2\/posts\/10055\/revisions"}],"predecessor-version":[{"id":10117,"href":"https:\/\/www.bohu.net\/blog\/wp-json\/wp\/v2\/posts\/10055\/revisions\/10117"}],"wp:attachment":[{"href":"https:\/\/www.bohu.net\/blog\/wp-json\/wp\/v2\/media?parent=10055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bohu.net\/blog\/wp-json\/wp\/v2\/categories?post=10055"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bohu.net\/blog\/wp-json\/wp\/v2\/tags?post=10055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}