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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$ B) S9 D% E( v+ 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
) C( C, q$ J, c* x" i! G( X2 ^yum install vixie-cron 撠勗臬鋆摰
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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
# D, \6 L( s1 [; G1 J* qcrontab 澆憒銝嚗
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靘憒:
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30 12 * * * /usr/bin/rm xxx.txt
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12:30 撠 xxx.txt 瑼獢畾箸& b2 Q' F# p: t5 P0 U" ]
* 銵函內瘥交瘥賢瑁
* r, s3 |1 b% B+ l8 d血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm1 e6 S1 ?% E7 j% q1 S9 @
靘:# every two hours at the top of the hour
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# every two hours from 11p.m. to 7a.m., and at 8a.m.% Z9 ?- E" ~1 A6 a {* n1 H
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渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php
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潸” 2015-9-22 22:11:29
嗉
鈭
霈
