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[linux隞也 crontab 雿輻冽澆

[銴鋆賡包
頝唾唳摰璅撅
璅銝
潸” 2015-9-22 22:11:29 | 芰閰脖 撣 |摨閬 |梯璅∪
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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4 l; t# [: l$ g5 P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
4 G& M" V+ i, f; p+ O' R2 Nyum install vixie-cron    撠勗臬鋆摰
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: A8 c. V/ {9 G* N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
+ o+ f7 T1 M. t4 x  W7 Lcrontab 澆憒銝嚗
$ o% y' v2 U3 z" G8 O! v% s
/ u6 }! X% L2 f               閬瑁隞
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30 12   *   *   *       /usr/bin/rm xxx.txt' N! m* u5 Z$ r& A. R7 J( M
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12:30 撠 xxx.txt 瑼獢畾箸0 C9 E: J, D$ @; q
* 銵函內瘥交瘥賢瑁
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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
2 e6 ~# }8 {- ~靘:# every two hours at the top of the hour3 e" e2 k! R5 a" C
           0 */2 * * * date" P8 j0 J* I/ _- \' k1 B
# every two hours from 11p.m. to 7a.m., and at 8a.m.7 T2 E! r$ ]9 x- y! F6 o
           0 23-7/2,8 * * * date. ~4 W% l2 b/ N7 K0 t

& m, J4 d! T6 C" o渲底蝝啣臬:  http://linux.vbird.org/linux_basic/0430cron.php, J; l4 j8 w; ~0 M$ G

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