{"id":9020,"date":"2023-10-19T11:03:02","date_gmt":"2023-10-19T03:03:02","guid":{"rendered":"\/?p=9020"},"modified":"2023-10-19T11:03:02","modified_gmt":"2023-10-19T03:03:02","slug":"linux-crontab-%e5%ae%9a%e6%97%b6%e4%bb%bb%e5%8a%a1","status":"publish","type":"post","link":"\/?p=9020","title":{"rendered":"Linux Crontab \u5b9a\u65f6\u4efb\u52a1"},"content":{"rendered":"<h2>cron\u4ecb\u7ecd<\/h2>\n<p>linux\u5185\u7f6e\u7684cron\u8fdb\u7a0b\u80fd\u5e2e\u6211\u4eec\u5b9e\u73b0\u8fd9\u4e9b\u9700\u6c42\uff0ccron\u642d\u914dshell\u811a\u672c\uff0c\u975e\u5e38\u590d\u6742\u7684\u6307\u4ee4\u4e5f\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n<p>\u6211\u4eec\u7ecf\u5e38\u4f7f\u7528\u7684\u662fcrontab\u547d\u4ee4\u662fcron table\u7684\u7b80\u5199\uff0c\u5b83\u662fcron\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u53eb\u5b83\u4f5c\u4e1a\u5217\u8868\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u4ee5\u4e0b\u6587\u4ef6\u5939\u5185\u627e\u5230\u76f8\u5173\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n<ul>\n<li>\/var\/spool\/cron\/ \u76ee\u5f55\u4e0b\u5b58\u653e\u7684\u662f\u6bcf\u4e2a\u7528\u6237\u5305\u62ecroot\u7684crontab\u4efb\u52a1\uff0c\u6bcf\u4e2a\u4efb\u52a1\u4ee5\u521b\u5efa\u8005\u7684\u540d\u5b57\u547d\u540d<\/li>\n<li>\/etc\/crontab \u8fd9\u4e2a\u6587\u4ef6\u8d1f\u8d23\u8c03\u5ea6\u5404\u79cd\u7ba1\u7406\u548c\u7ef4\u62a4\u4efb\u52a1\u3002<\/li>\n<li>\/etc\/cron.d\/ \u8fd9\u4e2a\u76ee\u5f55\u7528\u6765\u5b58\u653e\u4efb\u4f55\u8981\u6267\u884c\u7684crontab\u6587\u4ef6\u6216\u811a\u672c\u3002<br \/>\n\u6211\u4eec\u8fd8\u53ef\u4ee5\u628a\u811a\u672c\u653e\u5728\/etc\/cron.hourly\u3001\/etc\/cron.daily\u3001\/etc\/cron.weekly\u3001\/etc\/cron.monthly\u76ee\u5f55\u4e2d\uff0c\u8ba9\u5b83\u6bcf\u5c0f\u65f6\/\u5929\/\u661f\u671f\u3001\u6708\u6267\u884c\u4e00\u6b21\u3002<\/p>\n<h2>crontab\u7684\u4f7f\u7528<\/h2>\n<p>\u6211\u4eec\u5e38\u7528\u7684\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<pre><code>crontab [-u username]\u3000\u3000\u3000\u3000\/\/\u7701\u7565\u7528\u6237\u8868\u8868\u793a\u64cd\u4f5c\u5f53\u524d\u7528\u6237\u7684crontab\n-e      (\u7f16\u8f91\u5de5\u4f5c\u8868)\n-l      (\u5217\u51fa\u5de5\u4f5c\u8868\u91cc\u7684\u547d\u4ee4)\n-r      (\u5220\u9664\u5de5\u4f5c\u4f5c)<\/code><\/pre>\n<p>\u6211\u4eec\u7528crontab -e\u8fdb\u5165\u5f53\u524d\u7528\u6237\u7684\u5de5\u4f5c\u8868\u7f16\u8f91\uff0c\u662f\u5e38\u89c1\u7684vim\u754c\u9762\u3002\u6bcf\u884c\u662f\u4e00\u6761\u547d\u4ee4\u3002<\/p>\n<\/li>\n<\/ul>\n<p>crontab\u7684\u547d\u4ee4\u6784\u6210\u4e3a \u65f6\u95f4+\u52a8\u4f5c\uff0c\u5176\u65f6\u95f4\u6709\u5206\u3001\u65f6\u3001\u65e5\u3001\u6708\u3001\u5468\u4e94\u79cd\uff0c\u64cd\u4f5c\u7b26\u6709<\/p>\n<ul>\n<li><code>*<\/code> \u53d6\u503c\u8303\u56f4\u5185\u7684\u6240\u6709\u6570\u5b57<\/li>\n<li><code>\/<\/code> \u6bcf\u8fc7\u591a\u5c11\u4e2a\u6570\u5b57<\/li>\n<li><code>-<\/code> \u4eceX\u5230Z<\/li>\n<li><code>\uff0c<\/code>\u6563\u5217\u6570\u5b57<br \/>\n<h2>\u5b9e\u4f8b<\/h2>\n<p><strong>\u5b9e\u4f8b1<\/strong>\uff1a\u6bcf1\u5206\u949f\u6267\u884c\u4e00\u6b21myCommand<br \/>\n<code>* * * * * myCommand<\/code><br \/>\n<strong>\u5b9e\u4f8b2<\/strong>\uff1a\u6bcf\u5c0f\u65f6\u7684\u7b2c3\u548c\u7b2c15\u5206\u949f\u6267\u884c<br \/>\n<code>3,15 * * * * myCommand<\/code><br \/>\n<strong>\u5b9e\u4f8b3<\/strong>\uff1a\u5728\u4e0a\u53488\u70b9\u523011\u70b9\u7684\u7b2c3\u548c\u7b2c15\u5206\u949f\u6267\u884c<br \/>\n<code>3,15 8-11 * * * myCommand<\/code><br \/>\n<strong>\u5b9e\u4f8b4<\/strong>\uff1a\u6bcf\u9694\u4e24\u5929\u7684\u4e0a\u53488\u70b9\u523011\u70b9\u7684\u7b2c3\u548c\u7b2c15\u5206\u949f\u6267\u884c<br \/>\n<code>3,15 8-11 *\/2  *  * myCommand<\/code><br \/>\n<strong>\u5b9e\u4f8b5<\/strong>\uff1a\u6bcf\u5468\u4e00\u4e0a\u53488\u70b9\u523011\u70b9\u7684\u7b2c3\u548c\u7b2c15\u5206\u949f\u6267\u884c<br \/>\n<code>3,15 8-11 * * 1 myCommand<\/code><br \/>\n<strong>\u5b9e\u4f8b6<\/strong>\uff1a\u6bcf\u665a\u768421:30\u91cd\u542fsmb<br \/>\n<code>30 21 * * * \/etc\/init.d\/smb restart<\/code><br \/>\n<strong>\u5b9e\u4f8b7<\/strong>\uff1a\u6bcf\u67081\u300110\u300122\u65e5\u76844 : 45\u91cd\u542fsmb<br \/>\n<code>45 4 1,10,22 * * \/etc\/init.d\/smb restart<\/code><br \/>\n<strong>\u5b9e\u4f8b8<\/strong>\uff1a\u6bcf\u5468\u516d\u3001\u5468\u65e5\u76841 : 10\u91cd\u542fsmb<br \/>\n<code>10 1 * * 6,0 \/etc\/init.d\/smb restart<\/code><br \/>\n<strong>\u5b9e\u4f8b9<\/strong>\uff1a\u6bcf\u592918 : 00\u81f323 : 00\u4e4b\u95f4\u6bcf\u969430\u5206\u949f\u91cd\u542fsmb<br \/>\n<code>0,30 18-23 * * * \/etc\/init.d\/smb restart<\/code><br \/>\n<strong>\u5b9e\u4f8b10<\/strong>\uff1a\u6bcf\u661f\u671f\u516d\u7684\u665a\u4e0a11 : 00 pm\u91cd\u542fsmb<br \/>\n<code>0 23 * * 6 \/etc\/init.d\/smb restart<\/code><br \/>\n<strong>\u5b9e\u4f8b11<\/strong>\uff1a\u6bcf\u4e00\u5c0f\u65f6\u91cd\u542fsmb<br \/>\n<code>0 *\/1 * * * \/etc\/init.d\/smb restart<\/code><br \/>\n<strong>\u5b9e\u4f8b12<\/strong>\uff1a\u665a\u4e0a11\u70b9\u5230\u65e9\u4e0a7\u70b9\u4e4b\u95f4\uff0c\u6bcf\u9694\u4e00\u5c0f\u65f6\u91cd\u542fsmb<br \/>\n<code>0 23-7\/1 * * * \/etc\/init.d\/smb restart<\/code><\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>cron\u4ecb\u7ecd linux\u5185\u7f6e\u7684cron\u8fdb\u7a0b\u80fd\u5e2e\u6211\u4eec\u5b9e\u73b0\u8fd9\u4e9b\u9700\u6c42\uff0ccron\u642d\u914dshell\u811a\u672c\uff0c\u975e\u5e38\u590d\u6742\u7684\u6307\u4ee4\u4e5f\u6ca1\u6709\u95ee\u9898\u3002 \u6211\u4eec\u7ecf\u5e38\u4f7f\u7528\u7684\u662f   \u2026 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[14],"tags":[215,15],"_links":{"self":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts\/9020"}],"collection":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9020"}],"version-history":[{"count":1,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/9020\/revisions"}],"predecessor-version":[{"id":9021,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/9020\/revisions\/9021"}],"wp:attachment":[{"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9020"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9020"},{"taxonomy":"post_tag","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9020"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}