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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! L# c2 I8 k% Q5 `4 F( W. B# l

* K3 e7 f5 X: o, 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
- G6 r" l4 p, xyum install vixie-cron    撠勗臬鋆摰! p2 A* D4 Z  S; x: v2 q. n

3 m) D% L: R7 x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* ?, \/ e) }/ a) X- U
crontab 澆憒銝嚗
  H7 w6 y0 u6 P, M5 p
* `2 i% p5 Y. \4 r- E' q3 F# l- `               閬瑁隞
, K: t) T1 l! `  v( p: z靘憒:
# }! l0 W' ~' a: B+ R9 Y) S- u
- b9 h- ~& H1 M' ^# u- }30 12   *   *   *       /usr/bin/rm xxx.txt
. Q  |5 w, O& v% V! y: }
: V- E& Y- X  j( J# w1 S5 M- L 12:30 撠 xxx.txt 瑼獢畾箸) T3 _9 f0 d  Z
* 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
0 L* `$ S2 e: F9 G靘:# every two hours at the top of the hour9 [; L/ s+ m+ H& ?7 a& V
           0 */2 * * * date2 }0 J2 }# ~- p6 c9 G
# every two hours from 11p.m. to 7a.m., and at 8a.m.* ?) A$ I# T% f1 _7 {% i
           0 23-7/2,8 * * * date% n5 ~$ p8 Q% W6 m+ s
. ]: v! B$ A4 G
渲底蝝啣臬:  http://linux.vbird.org/linux_basic/0430cron.php
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