Linux/Unix 蝟餌絞 crontab 蝔撘舐其霈蝟餌絞雿輻刻芾閮剖券閬 嚗閬鈭
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靘憒雿輻刻臭誑閮剖瘥銝拐8暺芸ftp 唳啣餅瑼獢嚗 瘥憭拙憭3暺芸隞質蝑...閬摰鋆蝵殷閮園扯撣貉酉 /usr/sbin/crond 蝔撘銝 Linux 券璈芸頛伐憒潛曄 crond 刻嚗臭誑 /etc/rc.d/init.d/ 桅銝臬行撠瑁crond 蝔撘隞文仿璈芸瑁瑼鋆⊿Ｕ憒賣銵函內瘝摰鋆crond, CentOS 銝芾銝隞
# G/ F' f/ ?& ]6 |yum install vixie-cron 撠勗臬鋆摰. T6 n0 M9 r% I
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雿輻刻臭誑 crontab -e(摮瑼敺喳餌) 隞支蝺典神閬撌乩撖怠其 file 鋆∴瑁 crontab filename 撠勗臭誑鈭雿輻刻 crontab 瑼賣摮 /var/spool/cron/ 銝,瑼撠望航府撣唾摮,靘憒 root' Q. C: x) C$ K* J; |
crontab 澆憒銝嚗
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5 |% ?# m! n1 H* D9 F/ x靘憒:
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& A& E, [6 u% ~+ ?3 n30 12 * * * /usr/bin/rm xxx.txt$ _) `1 {$ H1 U$ O" M5 j8 M
g4 E/ ~* u6 O+ P% {' a 12:30 撠 xxx.txt 瑼獢畾箸6 a% I1 o2 D' z( I/ x
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血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
1 {; q# S" A% c9 ^) f; _, I& h靘:# every two hours at the top of the hour0 H4 u! ?0 s7 L+ a2 u( K
0 */2 * * * date
3 Y ?; j0 g; K- B. `/ Y0 Z # every two hours from 11p.m. to 7a.m., and at 8a.m.
L7 t0 w$ `7 s3 X U' ?( t 0 23-7/2,8 * * * date
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9 }) f. D8 I5 Z8 {渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php
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潸” 2015-9-22 22:11:29
嗉
鈭
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