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 3 H- F/ F# @7 [& B
yum install vixie-cron 撠勗臬鋆摰
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- R. F, v4 O4 t( W8 m: n/ k3 f' z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
% Y$ k5 f* P) Q% l3 L: W, x Ocrontab 澆憒銝嚗$ O2 Y R9 p' v$ ~) E+ D
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靘憒:
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, E% |2 h1 R' @- c V30 12 * * * /usr/bin/rm xxx.txt
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12:30 撠 xxx.txt 瑼獢畾箸: J+ r5 ^4 x# v& {% `1 Y3 o
* 銵函內瘥交瘥賢瑁
1 p# k5 d% ~4 I J. A血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm8 L4 F& y% T2 z. F
靘:# every two hours at the top of the hour
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. Z. B( y5 _. T- M2 E # every two hours from 11p.m. to 7a.m., and at 8a.m.
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9 c" a* m/ m/ f7 l* r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
