{"id":2301,"date":"2017-06-08T01:29:29","date_gmt":"2017-06-07T17:29:29","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=2301"},"modified":"2017-06-08T01:29:29","modified_gmt":"2017-06-07T17:29:29","slug":"crontab%e5%91%bd%e4%bb%a4%e6%a0%bc%e5%bc%8f%e4%b8%8e%e8%af%a6%e7%bb%86%e4%be%8b%e5%ad%90%ef%bc%8ccrontab-%e6%b2%a1%e6%9c%89%e7%ab%8b%e5%8d%b3%e7%94%9f%e6%95%88%e5%8e%9f%e5%9b%a0","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/crontab%e5%91%bd%e4%bb%a4%e6%a0%bc%e5%bc%8f%e4%b8%8e%e8%af%a6%e7%bb%86%e4%be%8b%e5%ad%90%ef%bc%8ccrontab-%e6%b2%a1%e6%9c%89%e7%ab%8b%e5%8d%b3%e7%94%9f%e6%95%88%e5%8e%9f%e5%9b%a0\/","title":{"rendered":"crontab\u547d\u4ee4\u683c\u5f0f\u4e0e\u8be6\u7ec6\u4f8b\u5b50\uff0ccrontab \u6ca1\u6709\u7acb\u5373\u751f\u6548\u539f\u56e0"},"content":{"rendered":"

crond\u662flinux\u4e0b\u7528\u6765\u5468\u671f\u6027\u7684\u6267\u884c\u67d0\u79cd\u4efb\u52a1\u6216\u7b49\u5f85\u5904\u7406\u67d0\u4e9b\u4e8b\u4ef6\u7684\u4e00\u4e2a\u5b88\u62a4\u8fdb\u7a0b\uff0c\u4e0ewindows\u4e0b\u7684\u8ba1\u5212\u4efb\u52a1\u7c7b\u4f3c\uff0c\u5f53\u5b89\u88c5\u5b8c\u6210\u64cd\u4f5c\u7cfb\u7edf\u540e\uff0c\u9ed8\u8ba4\u4f1a\u5b89\u88c5\u6b64\u670d\u52a1\u5de5\u5177\uff0c\u5e76\u4e14\u4f1a\u81ea\u52a8\u542f\u52a8crond\u8fdb\u7a0b\uff0ccrond\u8fdb\u7a0b\u6bcf\u5206\u949f\u4f1a\u5b9a\u671f\u68c0\u67e5\u662f\u5426\u6709\u8981\u6267\u884c\u7684\u4efb\u52a1\uff0c\u5982\u679c\u6709\u8981\u6267\u884c\u7684\u4efb\u52a1\uff0c\u5219\u81ea\u52a8\u6267\u884c\u8be5\u4efb\u52a1\u3002<\/p>\n

cron\u662f\u4e00\u4e2a\u5e38\u9a7b\u670d\u52a1\uff0c\u5b83\u63d0\u4f9b\u8ba1\u65f6\u5668\u7684\u529f\u80fd\uff0c\u8ba9\u7528\u6237\u5728\u7279\u5b9a\u7684\u65f6\u95f4\u5f97\u4ee5\u6267\u884c\u9884\u8bbe\u7684\u6307\u4ee4\u6216\u7a0b\u5e8f\u3002\u53ea\u8981\u7528\u6237\u4f1a\u7f16\u8f91\u8ba1\u65f6\u5668\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u8ba1\u65f6\u5668\u7684\u529f\u80fd
\n==============================================================
\n\u5e38\u7528\u7684\u547d\u4ee4:
\n\u5217\u51fa\u8be5\u7528\u6237\u7684\u6240\u6709\u5b9a\u65f6\u5668\uff1acrontab -l
\n\u7f16\u8f91\u8be5\u7528\u6237\u7684\u6240\u6709\u5b9a\u65f6\u5668\uff1acrontab -e
\n\u5220\u9664\u8be5\u7528\u6237\u7684\u6240\u6709\u5b9a\u65f6\u5668\uff1acrontab -r
\n==============================================================
\n\u57fa\u672c\u683c\u5f0f<\/p>\n

# Example of job definition:
\n# .—————- minute (0 – 59)
\n# |\u00a0 .————- hour (0 – 23)
\n# |\u00a0 |\u00a0 .———- day of month (1 – 31)
\n# |\u00a0 |\u00a0 |\u00a0 .——- month (1 – 12) OR jan,feb,mar,apr …
\n# |\u00a0 |\u00a0 |\u00a0 |\u00a0 .—- day of week (0 – 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
\n# |\u00a0 |\u00a0 |\u00a0 |\u00a0 |
\n# *\u00a0 *\u00a0 *\u00a0 *\u00a0 * user-name command to be executed
\n———————————————————————————-
\n*\u3000\u3000*\u3000\u3000*\u3000\u3000*\u3000\u3000*\u3000\u3000command
\n\u5206\u3000\u65f6\u3000\u00a0\u00a0 \u65e5\u3000\u6708\u3000 \u661f
\n\u5206\uff1a \u8868\u793a\u5206\u949f\uff0c\u53ef\u4ee5\u662f\u4ece0\u523059\u4e4b\u95f4\u7684\u4efb\u4f55\u6574\u6570\u3002
\n\u65f6\uff1a\u8868\u793a\u5c0f\u65f6\uff0c\u53ef\u4ee5\u662f\u4ece0\u523023\u4e4b\u95f4\u7684\u4efb\u4f55\u6574\u6570\u3002
\n\u65e5\uff1a\u8868\u793a\u65e5\u671f\uff0c\u53ef\u4ee5\u662f\u4ece1\u523031\u4e4b\u95f4\u7684\u4efb\u4f55\u6574\u6570\u3002
\n\u6708\uff1a\u8868\u793a\u6708\u4efd\uff0c\u53ef\u4ee5\u662f\u4ece1\u523012\u4e4b\u95f4\u7684\u4efb\u4f55\u6574\u6570\u3002
\n\u661f\uff1a\u8868\u793a\u661f\u671f\u51e0\uff0c\u53ef\u4ee5\u662f\u4ece0\u52307\u4e4b\u95f4\u7684\u4efb\u4f55\u6574\u6570\uff0c\u8fd9\u91cc\u76840\u62167\u4ee3\u8868\u661f\u671f\u65e5\u3002
\ncommand\uff1a\u8981\u6267\u884c\u7684\u547d\u4ee4\uff0c\u53ef\u4ee5\u662f\u7cfb\u7edf\u547d\u4ee4\uff0c\u4e5f\u53ef\u4ee5\u662f\u81ea\u5df1\u7f16\u5199\u7684\u811a\u672c\u6587\u4ef6\u3002
\n========================================================
\n\u5728\u4ee5\u4e0a\u5404\u4e2a\u5b57\u6bb5\u4e2d\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u7279\u6b8a\u5b57\u7b26\uff1a
\n\u661f\u53f7\uff08*\uff09\uff1a\u4ee3\u8868\u6240\u6709\u53ef\u80fd\u7684\u503c\uff0c\u4f8b\u5982month\u5b57\u6bb5\u5982\u679c\u662f\u661f\u53f7\uff0c\u5219\u8868\u793a\u5728\u6ee1\u8db3\u5176\u5b83\u5b57\u6bb5\u7684\u5236\u7ea6\u6761\u4ef6\u540e\u6bcf\u6708\u90fd\u6267\u884c\u8be5\u547d\u4ee4\u64cd\u4f5c\u3002
\n\u9017\u53f7\uff08,\uff09\uff1a\u53ef\u4ee5\u7528\u9017\u53f7\u9694\u5f00\u7684\u503c\u6307\u5b9a\u4e00\u4e2a\u5217\u8868\u8303\u56f4\uff0c\u4f8b\u5982\uff0c\u201c1,2,5,7,8,9\u201d
\n\u4e2d\u6760\uff08-\uff09\uff1a\u53ef\u4ee5\u7528\u6574\u6570\u4e4b\u95f4\u7684\u4e2d\u6760\u8868\u793a\u4e00\u4e2a\u6574\u6570\u8303\u56f4\uff0c\u4f8b\u5982\u201c2-6\u201d\u8868\u793a\u201c2,3,4,5,6\u201d
\n\u6b63\u659c\u7ebf\uff08\/\uff09\uff1a\u53ef\u4ee5\u7528\u6b63\u659c\u7ebf\u6307\u5b9a\u65f6\u95f4\u7684\u95f4\u9694\u9891\u7387\uff0c\u4f8b\u5982\u201c0-23\/2\u201d\u8868\u793a\u6bcf\u4e24\u5c0f\u65f6\u6267\u884c\u4e00\u6b21\u3002\u540c\u65f6\u6b63\u659c\u7ebf\u53ef\u4ee5\u548c\u661f\u53f7\u4e00\u8d77\u4f7f\u7528\uff0c\u4f8b\u5982*\/10\uff0c\u5982\u679c\u7528\u5728minute\u5b57\u6bb5\uff0c\u8868\u793a\u6bcf\u5341\u5206\u949f\u6267\u884c\u4e00\u6b21\u3002
\n========================================================
\n\u5e38\u7528\u5b9a\u65f6\u65f6\u95f4:<\/p>\n

    \n
  1. \u6bcf1\u5206\u949f\u6267\u884c\u4e00\u6b21command\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0* * * * * command<\/li>\n
  2. \u6bcf\u5929\u65e9\u4e0a\u516d\u70b9\u6267\u884c\u4e00\u6b21~\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 6 * * * command<\/li>\n
  3. \u6bcf\u4e24\u4e2a\u5c0f\u65f6\u6267\u884c\u4e00\u6b21~\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 *\/2 * * * command<\/li>\n
  4. \u665a\u4e0a11\u70b9\u5230\u65e9\u4e0a\u516b\u70b9\u4e4b\u95f4\u6bcf\u4e24\u4e2a\u5c0f\u65f6\u548c\u6bcf\u516b\u5c0f\u65f6\u6267\u884c\u4e00\u6b21 \u00a0\u00a0\u00a0 0 23-7\/2,8\u00a0 * * * command<\/li>\n
  5. \u6bcf\u670812\u53f7\u7684\u6bcf\u4e2a\u661f\u671f\u4e8c\u5230\u661f\u671f\u4e94\u4e0a\u53489\u70b9\u6267\u884c\u00a0\u00a0 0 9 12 * 2-5\u00a0 command<\/li>\n<\/ol>\n

    ========================================================<\/p>\n

    crontab \u6ca1\u6709\u7acb\u5373\u751f\u6548\u539f\u56e0
    \n\u7b2c\u4e00\u79cd\u662f\u811a\u672c\u6267\u884c\u4e86\uff0c\u4f46\u662f\u62a5\u9519\uff1a\u5728crontab\u91cc\u8c03\u5ea6\u8fd0\u884c\uff0c\u7ed3\u679c\u53d1\u73b0\u6ca1\u6709\u7ed3\u679c\uff0c\u67e5\u770b\/var\/log\/message \u65e5\u5fd7\uff0c\u53d1\u73b0crontab\u6709\u6267\u884c\uff0c\u4f46\u662f\u5931\u8d25\u3002
    \n\u624b\u52a8\u8fd0\u884c\u90fd\u662f\u53ef\u4ee5\u7684\uff0c\u653e\u5728crontab\u91cc\u8fb9\u53d1\u73b0\u5c31\u4e0d\u80fd\u8fd0\u884c\u4e86\u3002
    \n\u5904\u7406\u65b9\u6cd5\uff1a\u811a\u672c\u4e2d\u4e0d\u8981\u91c7\u7528\u76f8\u5bf9\u8def\u5f84\uff0c\u5168\u90e8\u6539\u4e3a\u7edd\u5bf9\u8def\u5f84<\/p>\n

    \u7b2c\u4e8c\u79cd\u662f\u7f16\u8f91\/var\/spool\/cron\/user\u00a0\u00a0 user\u4e3a\u6267\u884c\u7528\u6237\u540d\uff0c\u4e00\u822c\u4e3aroot
    \n\u5982\u66f4\u6539\u540e\u4e0d\u8d77\u6548\u679c\uff0c\u8bf7\u91cd\u65b0\u52a0\u8f7dcron\uff1a
    \n\u5904\u7406\u65b9\u6cd5\uff1a \/etc\/init.d\/cron reload<\/p>\n

    \u7b2c\u4e09\u79cd \u7528crontab -e\u00a0 \u8fdb\u884c\u7f16\u8f91
    \n#crontab -e<\/p>\n

    \u5982\u8fd8\u4e0d\u884c\u5c31\u91cd\u542f\u670d\u52a1\uff1a<\/p>\n

    \u5904\u7406\u65b9\u6cd5\uff1a\/etc\/init.d\/crond restart<\/p>\n","protected":false},"excerpt":{"rendered":"

    crond\u662flinux\u4e0b\u7528\u6765\u5468\u671f\u6027\u7684\u6267\u884c\u67d0\u79cd\u4efb\u52a1\u6216\u7b49\u5f85\u5904\u7406\u67d0\u4e9b\u4e8b\u4ef6\u7684\u4e00\u4e2a\u5b88\u62a4\u8fdb\u7a0b\uff0c\u4e0ewindows\u4e0b\u7684\u8ba1\u5212\u4efb\u52a1 … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[49],"tags":[683,684],"class_list":["post-2301","post","type-post","status-publish","format-standard","hentry","category-linux","tag-crontab-","tag-crontab"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2301","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=2301"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2301\/revisions"}],"predecessor-version":[{"id":2302,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2301\/revisions\/2302"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=2301"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=2301"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=2301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}