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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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& }0 `/ Y) f6 v, c1 R* |5 C4 S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 o* I  I/ k" k9 o; d( qyum install vixie-cron    撠勗臬鋆摰7 O" i7 S2 R5 K/ ]* h% p+ N# g' T3 ~

9 Q/ z% Z7 E0 z+ j% @1 B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
% q5 K3 r( h% E% k+ e; i) Ycrontab 澆憒銝嚗
# g& l0 s7 h6 _: g" H% \2 b  I% i: l, o; g
               閬瑁隞/ G& W! `$ a  j8 |- k
靘憒:! Z- j: B8 T- P/ u7 S* p9 e7 d

8 u3 _9 U0 ?( z# C; e, Q/ p' Z30 12   *   *   *       /usr/bin/rm xxx.txt
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! R' [0 T, `% H& X- ` 12:30 撠 xxx.txt 瑼獢畾箸
3 [' @( C5 E& s  _8 t+ b( _- s* 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
7 G9 V6 ?0 J6 j' S; t# x8 G靘:# every two hours at the top of the hour2 w1 j; E3 U* o1 k
           0 */2 * * * date
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# every two hours from 11p.m. to 7a.m., and at 8a.m.$ u% T7 _0 F; k+ K+ K7 K5 f7 T
           0 23-7/2,8 * * * date
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渲底蝝啣臬:  http://linux.vbird.org/linux_basic/0430cron.php0 U" o$ N% z& J2 Z0 _% c) Z

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