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; u( r8 D7 o. \" n
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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
) J, [0 D8 ~/ v1 ?/ v) hyum install vixie-cron 撠勗臬鋆摰+ Q4 p1 ~; r+ d5 G6 e7 o
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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; }( n! Q( t- F" O0 _: n" x
crontab 澆憒銝嚗/ f$ B: D8 H! ?6 A' E" q
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閬瑁隞: V V5 b; [. M9 W) [
靘憒:
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u# z. T5 a" Q6 }. f& ~ f2 o30 12 * * * /usr/bin/rm xxx.txt0 l) A3 U* J4 m# J8 z
$ e, b# T6 W; H7 P 12:30 撠 xxx.txt 瑼獢畾箸! u0 Q' z1 _, M" m! w; f
* 銵函內瘥交瘥賢瑁
! B/ b1 ~0 z9 X/ i% z/ {: V血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm8 @4 E+ k4 z5 H2 | w
靘:# every two hours at the top of the hour
$ o, v \0 y# V9 Z; n! x& `9 r 0 */2 * * * date& R7 i0 Q8 f/ F0 F" ^. m, {
# every two hours from 11p.m. to 7a.m., and at 8a.m." ~" c) r& J8 b$ `6 O0 V
0 23-7/2,8 * * * date
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0 y5 S9 M& Y% P4 i1 E+ H5 W1 z* m渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php" Z7 K' ?- g4 Z1 j5 {2 y
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潸” 2015-9-22 22:11:29
嗉
鈭
霈
