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' I. `* O% t# }! Y( w
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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
! h& Q, W3 f$ r* o+ {. D' \) w' _yum install vixie-cron 撠勗臬鋆摰. C0 {+ r2 r7 _
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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
! J+ N' {9 k* _2 l3 Icrontab 澆憒銝嚗, w" D+ d4 h* X0 d$ Z: z% ]
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/ r. X9 g3 \/ W 12:30 撠 xxx.txt 瑼獢畾箸7 T; _7 m5 p6 @2 d$ K
* 銵函內瘥交瘥賢瑁
" u: O, F/ [. R. L( w" ^& h, T血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
' t6 \5 V+ G/ c靘:# every two hours at the top of the hour
) Z; G# c- K8 Y/ g: ? 0 */2 * * * date# x6 h, G r4 s3 }
# every two hours from 11p.m. to 7a.m., and at 8a.m.6 @5 r# N+ O1 |- j: b
0 23-7/2,8 * * * date, ^ D$ `5 U" z9 `! I( S t3 H
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渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php' z6 r5 z% H2 V4 t0 |$ S8 a
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潸” 2015-9-22 22:11:29
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