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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* q, _4 I2 T! |- N) w5 g; e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
- ?6 y( m8 j4 A7 w1 C' hyum 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
" ?5 j Q0 I4 }! p0 B- bcrontab 澆憒銝嚗
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閬瑁隞
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30 12 * * * /usr/bin/rm xxx.txt
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12:30 撠 xxx.txt 瑼獢畾箸
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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/rm6 o2 b7 a2 P5 M: Q
靘:# every two hours at the top of the hour
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- G! E y! _4 Y" v7 W6 p) K( o # every two hours from 11p.m. to 7a.m., and at 8a.m.
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0 p' W$ J5 E; }% f3 ^/ L渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php
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