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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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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 : A% s# v8 b% e, O6 a. I& F
yum install vixie-cron    撠勗臬鋆摰$ ^: V; c; \3 p3 l# @6 x1 ]9 Y
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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
% r% H; r& A8 {, C0 R. Q3 O* ycrontab 澆憒銝嚗
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9 k  t: i+ [2 {5 G. t5 h' a               閬瑁隞# i8 t. a4 v+ C* N9 W% R  G
靘憒:2 q  K- Y3 ^, n: S, E7 ^

0 L9 H" F) |  D30 12   *   *   *       /usr/bin/rm xxx.txt
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" J  S5 `% R6 d, ?  ] 12:30 撠 xxx.txt 瑼獢畾箸- ?- G3 g4 u& |2 J
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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
5 a2 S' e3 ~/ m( F! r7 H靘:# every two hours at the top of the hour' x. X* s& @7 m5 V# n5 g
           0 */2 * * * date
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# every two hours from 11p.m. to 7a.m., and at 8a.m.$ t# I6 [! b( H- @3 l* E
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渲底蝝啣臬:  http://linux.vbird.org/linux_basic/0430cron.php% J7 h6 x+ o% L3 c
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