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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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' k1 n; k  h6 J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 ' x5 c$ R; O, J- k; O! w# C
yum install vixie-cron    撠勗臬鋆摰
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1 @3 p* n- l; e- j5 [; r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; ~; M% j, L  N# Q& t
crontab 澆憒銝嚗
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# q1 t: k' }" d; B5 o+ `  K# p               閬瑁隞
! b1 U# Q6 m6 T% Z. c靘憒:$ S3 d% f* j/ Z1 F$ a2 |

5 F) V+ u/ B6 k30 12   *   *   *       /usr/bin/rm xxx.txt
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12:30 撠 xxx.txt 瑼獢畾箸4 i; q+ a% X' @% ~4 Q9 f/ y# K
* 銵函內瘥交瘥賢瑁* A4 h3 d" U4 A4 d! Z: q. g% k
血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
! P% \  q/ T& \5 h+ O3 C靘:# every two hours at the top of the hour
! [3 c! l0 S7 C! k' k9 P           0 */2 * * * date' Z! q& K4 q$ d
# every two hours from 11p.m. to 7a.m., and at 8a.m.
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渲底蝝啣臬:  http://linux.vbird.org/linux_basic/0430cron.php# B  v# v" D9 t/ C5 e7 f5 X( h
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