{"id":1666,"date":"2018-04-21T12:54:46","date_gmt":"2018-04-21T04:54:46","guid":{"rendered":"http:\/\/www.821121.com\/?p=1666"},"modified":"2022-04-21T12:55:07","modified_gmt":"2022-04-21T04:55:07","slug":"crontab%e5%91%bd%e4%bb%a4%e7%9a%84%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"http:\/\/www.821121.com\/?p=1666","title":{"rendered":"crontab\u547d\u4ee4\u7684\u4f7f\u7528"},"content":{"rendered":"

\u5b9a\u4e49<\/h1>\n

crontab \u662f\u7528\u6765\u8ba9\u4f7f\u7528\u8005\u5728\u56fa\u5b9a\u65f6\u95f4\u6216\u56fa\u5b9a\u95f4\u9694\u6267\u884c\u7a0b\u5e8f\u4e4b\u7528\uff0c\u6362\u53e5\u8bdd\u8bf4\uff0c\u4e5f\u5c31\u662f\u7c7b\u4f3c\u4f7f\u7528\u8005\u7684\u65f6\u7a0b\u8868\u3002<\/p>\n

1.\u5b89\u88c5cron\u670d\u52a1<\/h2>\n

yum -y install vixie-cron crontabs<\/code><\/p>\n

2.cron\u670d\u52a1\u7684\u5173\u95ed\u4e0e\u542f\u7528<\/h2>\n
# \u67e5\u770bcond \u72b6\u6001\nservice crond status\n\n# \u542f\u52a8cron\nservice crond start\n\n# \u5173\u95edcron\nservice crond stop\n\n# \u91cd\u542fcron\nservice crond restart<\/code><\/pre>\n
3.crontab\u547d\u4ee4\u7684\u4f7f\u7528<\/h2>\n
crontab [-u user] file\ncrontab [-u user] [ -e | -l | -r ]<\/code><\/pre>\n
\u8bf4\u660e<\/h4>\n
-u user \u662f\u6307\u8bbe\u5b9a\u6307\u5b9a user \u7684\u65f6\u7a0b\u8868\uff0c\u8fd9\u4e2a\u524d\u63d0\u662f\u4f60\u5fc5\u987b\u8981\u6709\u5176\u6743\u9650(\u6bd4\u5982\u8bf4\u662f root)\u624d\u80fd\u591f\u6307\u5b9a\u4ed6\u4eba\u7684\u65f6\u7a0b\u8868\u3002\u5982\u679c\u4e0d\u4f7f\u7528 -u user \u7684\u8bdd\uff0c\u5c31\u662f\u8868\u793a\u8bbe\u5b9a\u81ea\u5df1\u7684\u65f6\u7a0b\u8868\u3002<\/p>\n
\u53c2\u6570\u8bf4\u660e<\/h4>\n
-e : \u6267\u884c\u6587\u5b57\u7f16\u8f91\u5668\u6765\u8bbe\u5b9a\u65f6\u7a0b\u8868\uff0c\u5185\u5b9a\u7684\u6587\u5b57\u7f16\u8f91\u5668\u662f VI\uff0c\u5982\u679c\u4f60\u60f3\u7528\u522b\u7684\u6587\u5b57\u7f16\u8f91\u5668\uff0c\u5219\u8bf7\u5148\u8bbe\u5b9a VISUAL \u73af\u5883\u53d8\u6570\u6765\u6307\u5b9a\u4f7f\u7528\u90a3\u4e2a\u6587\u5b57\u7f16\u8f91\u5668(\u6bd4\u5982\u8bf4 setenv VISUAL joe)
\n-r : \u5220\u9664\u76ee\u524d\u7684\u65f6\u7a0b\u8868
\n-l : \u5217\u51fa\u76ee\u524d\u7684\u65f6\u7a0b\u8868<\/p>\n
4.\u65f6\u7a0b\u8868\u7684\u914d\u7f6e\u683c\u5f0f<\/h2>\n
f1 f2 f3 f4 f5 program<\/code><\/p>\n
\u8bf4\u660e<\/h4>\n
    \n
  1. \u5176\u4e2d f1 \u662f\u8868\u793a\u5206\u949f\uff0cf2 \u8868\u793a\u5c0f\u65f6\uff0cf3 \u8868\u793a\u4e00\u4e2a\u6708\u4efd\u4e2d\u7684\u7b2c\u51e0\u65e5\uff0cf4 \u8868\u793a\u6708\u4efd\uff0cf5 \u8868\u793a\u4e00\u4e2a\u661f\u671f\u4e2d\u7684\u7b2c\u51e0\u5929\u3002program \u8868\u793a\u8981\u6267\u884c\u7684\u7a0b\u5e8f\u3002<\/li>\n
  2. \u5f53 f1 \u4e3a * \u65f6\u8868\u793a\u6bcf\u5206\u949f\u90fd\u8981\u6267\u884c program\uff0c\u4ee5\u6b64\u7c7b\u63a8<\/li>\n
  3. \u5f53 f1 \u4e3a a-b \u65f6\u8868\u793a\u4ece\u7b2c a \u5206\u949f\u5230\u7b2c b \u5206\u949f\u8fd9\u6bb5\u65f6\u95f4\u5185\u8981\u6267\u884c\uff0c\u4ee5\u6b64\u7c7b\u63a8<\/li>\n
  4. \u5f53 f1 \u4e3a *\/n \u65f6\u8868\u793a\u6bcf n \u5206\u949f\u4e2a\u65f6\u95f4\u95f4\u9694\u6267\u884c\u4e00\u6b21\uff0c\u4ee5\u6b64\u7c7b\u63a8<\/li>\n
  5. \u5f53 f1 \u4e3a a, b, c,... \u65f6\u8868\u793a\u7b2c a, b, c,... \u5206\u949f\u8981\u6267\u884c\uff0c\u4ee5\u6b64\u7c7b\u63a8<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
    \u5b9a\u4e49 crontab \u662f\u7528\u6765\u8ba9\u4f7f\u7528\u8005\u5728\u56fa\u5b9a\u65f6\u95f4\u6216\u56fa<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1666","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1666"}],"version-history":[{"count":8,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1666\/revisions"}],"predecessor-version":[{"id":1705,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1666\/revisions\/1705"}],"wp:attachment":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1666"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}