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 : A% s# v8 b% e, O6 a. I& F
yum install vixie-cron 撠勗臬鋆摰$ ^: V; c; \3 p3 l# @6 x1 ]9 Y
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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
% r% H; r& A8 {, C0 R. Q3 O* ycrontab 澆憒銝嚗
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0 L9 H" F) | D30 12 * * * /usr/bin/rm xxx.txt
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" J S5 `% R6 d, ? ] 12:30 撠 xxx.txt 瑼獢畾箸- ?- G3 g4 u& |2 J
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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
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0 */2 * * * date
8 {. d- X. o J2 _ # every two hours from 11p.m. to 7a.m., and at 8a.m.$ t# I6 [! b( H- @3 l* E
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渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php% J7 h6 x+ o% L3 c
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