{"id":1487,"date":"2022-12-19T15:34:15","date_gmt":"2022-12-19T07:34:15","guid":{"rendered":"https:\/\/benson.ml\/?p=1487"},"modified":"2022-12-19T15:44:09","modified_gmt":"2022-12-19T07:44:09","slug":"linux-crontab-%e5%ae%9a%e6%97%b6%e4%bb%bb%e5%8a%a1%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/benson80.eu.org\/?p=1487","title":{"rendered":"linux crontab \u5b9a\u65f6\u4efb\u52a1\u8be6\u89e3"},"content":{"rendered":"\n<p>\u6b63\u5982\u95f9\u949f\u5bf9\u4e8e\u65e5\u5e38\u751f\u6d3b\u7684\u91cd\u8981\u6027\u4e00\u6837\uff0clinux crontab \u5b9a\u65f6\u4efb\u52a1\u5728\u5f00\u53d1\u4e2d\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u5de5\u5177\uff0c\u8bf8\u5982\uff1a\u6bcf\u516d\u4e2a\u6708\u6e05\u7406\u4e00\u6b21\u65e5\u5fd7\uff0c\u6bcf\u5929\u51cc\u6668 0:00 \u91cd\u542f\u670d\u52a1\u7b49\u591a\u79cd\u573a\u666f\uff0c\u90fd\u53ef\u4ee5\u7528 crontab \u641e\u5b9a\u3002<\/p>\n\n\n\n<p>\u8f93\u5165&nbsp;<code>crontab -e<\/code>&nbsp;\u5e76\u5728\u6587\u4ef6\u672b\u5c3e\u8f93\u5165&nbsp;<code>*\/2 * * * * date &gt;&gt; \/tmp\/test-crontab.txt<\/code>\uff08\u540e\u7eed\u4f1a\u5bf9\u8fd9\u53e5\u8bdd\u7684\u542b\u4e49\u505a\u89e3\u91ca\uff0c\u6b64\u5904\u5148\u4e0d\u7528\u7ea0\u7ed3\uff09\uff0c\u591a\u7b49\u5f85\u51e0\u5206\u949f\u540e\u770b\u770b \/tmp \u76ee\u5f55\u4e0b\u751f\u6210\u7684 test-crontab.txt \u6587\u4ef6\u4e2d\u7684\u5185\u5bb9\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"282\" height=\"77\" src=\"https:\/\/benson.ml\/wp-content\/uploads\/2022\/12\/image-4.png\" alt=\"\" class=\"wp-image-1494\"\/><\/figure>\n\n\n\n<p>\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u6211\u4eec\u5b9e\u73b0\u4e86<strong>\u6bcf\u9694 2 \u5206\u949f\u5c06\u5f53\u524d\u65e5\u671f\u8ffd\u52a0\u5230\u6587\u4ef6\u4e2d<\/strong>\u7684\u529f\u80fd\uff0c\u4e00\u884c\u547d\u4ee4\u4e00\u53e5\u8868\u8fbe\u5f0f\uff0ccrontab \u7684\u4f7f\u7528\u5c31\u662f\u8fd9\u4e48\u7b80\u5355\u3002<\/p>\n\n\n\n<p>\u5728\u8be6\u7ec6\u89e3\u91ca crontab \u8868\u8fbe\u5f0f\u7684\u5177\u4f53\u542b\u4e49\u4e4b\u524d\uff0c\u6765\u770b\u770b\u5176\u4ed6\u7684\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p><code>crontab -l<\/code>&nbsp;\u67e5\u770b\u5f53\u524d\u8fd0\u884c\u7684\u5b9a\u65f6\u4efb\u52a1<\/p>\n\n\n\n<p><code>crontab -r<\/code>&nbsp;\u5220\u9664\u6240\u6709\u7684\u5b9a\u65f6\u4efb\u52a1<\/p>\n\n\n\n<p>\u6ce8\u610f\uff1a\u5982\u679c\u8981\u505c\u6b62\u67d0\u4e2a\u5b9a\u65f6\u4efb\u52a1\uff0c\u53ea\u9700\u8981&nbsp;<code>-e<\/code>&nbsp;\u7684\u65f6\u5019\u4f7f\u7528&nbsp;<code>#<\/code>&nbsp;\u5c06\u5176\u6ce8\u91ca\u5373\u53ef\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u4e3e\u4e2a\u4f8b\u5b50\">\u4e3e\u4e2a\u4f8b\u5b50<\/h3>\n\n\n\n<p>\u8bf4\u7684\u518d\u591a\uff0c\u4e0d\u5982\u5b9e\u6218\u51e0\u4e2a\u4f8b\u5b50\u6765\u5f97\u66f4\u52a0\u6e05\u6670\u6613\u61c2<\/p>\n\n\n\n<p><code>5 0 * * *<\/code>&nbsp;\u6bcf\u5929\u7684 00:05 \u70b9<\/p>\n\n\n\n<p><code>15 14 1 * *<\/code>&nbsp;\u6bcf\u4e2a\u6708 1 \u53f7\u7684 14:15<\/p>\n\n\n\n<p><code>0 22 * * 1-5<\/code>&nbsp;\u6bcf\u5468\u4ece\u5468\u4e00\u5230\u5468\u4e94 22:00<\/p>\n\n\n\n<p>\u867d\u7136 crontab \u4e0d\u590d\u6742\uff0c\u4f46\u662f\u4e5f\u6ca1\u90a3\u4e48\u76f4\u767d\uff0c\u9700\u8981\u5927\u8111\u7a0d\u5fae\u7ffb\u8bd1\u4e00\u4e0b\uff0c\u5e76\u4e14 crontab \u4e0d\u592a\u65b9\u4fbf\u6d4b\u8bd5\u4efb\u52a1\u4ec0\u4e48\u65f6\u95f4\u8fd0\u884c\uff0c\u6b64\u65f6\u501f\u52a9\u5728\u7ebf\u7684&nbsp;<a href=\"https:\/\/crontab.guru\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/crontab.guru\/<\/a>&nbsp;\u5de5\u5177\uff0c\u6211\u4eec\u5c31\u80fd\u5199\u51fa\u6b63\u786e\u7684\u8868\u8fbe\u5f0f\uff0c\u5e76\u4e14\u70b9\u51fb&nbsp;<code>next<\/code>&nbsp;\u8fd8\u53ef\u4ee5\u770b\u5230\u4efb\u52a1\u8fd0\u884c\u7684\u65f6\u95f4\u70b9\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"565\" height=\"309\" src=\"https:\/\/benson.ml\/wp-content\/uploads\/2022\/12\/image-3.png\" alt=\"\" class=\"wp-image-1489\" srcset=\"https:\/\/benson80.eu.org\/wp-content\/uploads\/2022\/12\/image-3.png 565w, https:\/\/benson80.eu.org\/wp-content\/uploads\/2022\/12\/image-3-300x164.png 300w, https:\/\/benson80.eu.org\/wp-content\/uploads\/2022\/12\/image-3-421x230.png 421w\" sizes=\"auto, (max-width: 565px) 100vw, 565px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u591a\u7528\u6237\u7ba1\u7406\">\u591a\u7528\u6237\u7ba1\u7406<\/h3>\n\n\n\n<p>linux \u7cfb\u7edf\u662f\u4e00\u4e2a\u591a\u7528\u6237\u7cfb\u7edf\uff0ccrontab \u4e5f\u652f\u6301\u591a\u7528\u6237\uff0c\u9ed8\u8ba4\u4f7f\u7528\u5f53\u524d\u7528\u6237\uff0c\u4f7f\u7528&nbsp;<code>crontab -u username<\/code>&nbsp;\u4fbf\u53ef\u4ee5\u6307\u5b9a\u5176\u4ed6\u7528\u6237\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982&nbsp;<code>sudo crontab -u root -e<\/code>&nbsp;\u4fbf\u53ef\u7f16\u8f91 root \u7528\u6237\u7684\u914d\u7f6e\uff0c\u4e0d\u540c\u7528\u6237\u7684\u914d\u7f6e\u4fdd\u5b58\u5728&nbsp;<code>\/var\/spool\/cron\/crontabs<\/code>&nbsp;\u76ee\u5f55\u4e0b\u3002<\/p>\n\n\n\n<p>\u9664\u6b64\u4e4b\u5916\uff0c<code>\/etc\/cron.allow<\/code>&nbsp;\u6587\u4ef6\u63a7\u5236\u54ea\u4e9b\u7528\u6237\u53ef\u4ee5\u4f7f\u7528 crontab\uff0c<code>\/etc\/cron.deny<\/code>&nbsp;\u6587\u4ef6\u63a7\u5236\u54ea\u4e9b\u7528\u6237\u4e0d\u53ef\u4ee5\u4f7f\u7528 crontab\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u7cfb\u7edf\u7ea7\u7684-crontab\">\u7cfb\u7edf\u7ea7\u7684 crontab<\/h3>\n\n\n\n<p><code>\/etc\/crontab<\/code>&nbsp;\u6587\u4ef6\u4e2d\u8bbe\u7f6e\u7684\u662f\u4e00\u4e9b\u7cfb\u7edf\u7ea7\u7684\u5b9a\u65f6\u4efb\u52a1\uff0c\u5176\u4e2d\u6bcf\u884c\u90fd\u591a\u4e86\u4e00\u4e2a\u6267\u884c\u7528\u6237\uff0c\u5e76\u4e14\u76f4\u63a5\u7f16\u8f91\u8be5\u6587\u4ef6\u800c\u4e0d\u662f\u4f7f\u7528&nbsp;<code>crontab<\/code>&nbsp;\u547d\u4ee4\u6765\u7ba1\u7406\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u95ee\u9898\u6392\u67e5\">\u95ee\u9898\u6392\u67e5<\/h3>\n\n\n\n<p>\u6240\u6709\u7684\u5b9a\u65f6\u4efb\u52a1\u90fd\u662f\u7531&nbsp;<code>cron<\/code>&nbsp;\u5b88\u62a4\u8fdb\u7a0b\u6765\u8d1f\u8d23\u8c03\u5ea6\u6267\u884c\u7684\uff0c\u5982\u679c\u4efb\u52a1\u672a\u6309\u7167\u4f60\u7684\u9884\u671f\u8fd0\u884c\uff0c\u53ef\u4ee5\u901a\u8fc7&nbsp;<code>systemctl status cron.service<\/code>&nbsp;\u67e5\u770b\u5b88\u62a4\u8fdb\u7a0b\u662f\u5426 running\u3002<\/p>\n\n\n\n<p>\u4e0b\u56fe\u7684\u65e5\u5fd7\u8fd8\u53ef\u4ee5\u770b\u5230\u7531\u4e8e\u7f3a\u5c11\u7528\u6237\u540d\u5bfc\u81f4\u8bed\u6cd5\u9519\u8bef\uff0c\u4e00\u4e2a\u5b9a\u65f6\u4efb\u52a1\u88ab\u5ffd\u7565\uff0c\u4f7f\u7528&nbsp;<code>journalctl -u cron.service<\/code>&nbsp;\u8fd8\u53ef\u4ee5\u67e5\u770b\u66f4\u591a\u7684\u65e5\u5fd7\u4fe1\u606f\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6b63\u5982\u95f9\u949f\u5bf9\u4e8e\u65e5\u5e38\u751f\u6d3b\u7684\u91cd\u8981\u6027\u4e00\u6837\uff0clinux cr &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1487","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/benson80.eu.org\/index.php?rest_route=\/wp\/v2\/posts\/1487","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/benson80.eu.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/benson80.eu.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/benson80.eu.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/benson80.eu.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1487"}],"version-history":[{"count":7,"href":"https:\/\/benson80.eu.org\/index.php?rest_route=\/wp\/v2\/posts\/1487\/revisions"}],"predecessor-version":[{"id":1497,"href":"https:\/\/benson80.eu.org\/index.php?rest_route=\/wp\/v2\/posts\/1487\/revisions\/1497"}],"wp:attachment":[{"href":"https:\/\/benson80.eu.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/benson80.eu.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1487"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/benson80.eu.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}