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 O. h# L t6 |+ r* J
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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
8 y9 T3 O) _, F! X8 J. tyum install vixie-cron 撠勗臬鋆摰: w5 R# s) V/ u/ e
) z; i9 U" ?" J2 N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 root4 b% |" s( o; O* d
crontab 澆憒銝嚗 h8 ~# b }% w ? w$ U
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靘憒:
$ o4 G/ f; s9 z# P& _ T( f9 Y9 p/ d
' |. P0 y0 l: @$ \/ S: {6 h7 C% y30 12 * * * /usr/bin/rm xxx.txt
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! o, m8 H8 h( \- G: ?' n 12:30 撠 xxx.txt 瑼獢畾箸: d% `, _* T2 S8 ]# q- j
* 銵函內瘥交瘥賢瑁2 w; t* f+ }/ H E9 F
血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
9 a) b0 |3 W1 C* K. q) \靘:# every two hours at the top of the hour
8 }5 w: e! ~ c# }8 m 0 */2 * * * date
1 I( m0 A: l3 T( k, Q9 h # every two hours from 11p.m. to 7a.m., and at 8a.m.
$ O7 G8 F3 h+ z0 t4 P; ~; @ 0 23-7/2,8 * * * date/ U$ X' T1 I: U) ]
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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
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