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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) b( `* z% _9 L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 `$ v/ y j6 c/ h
yum install vixie-cron 撠勗臬鋆摰- c3 ?1 C& R7 X9 Z. \' R+ v: e
* |8 N7 s X1 y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+ C( \3 r0 X1 V, s- t
crontab 澆憒銝嚗- h5 T- M) V6 ]* }& S
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靘憒:* J0 U' q4 e0 H& \, i* z. s
0 @- n5 X% @$ I6 X7 z& [# y30 12 * * * /usr/bin/rm xxx.txt
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: K( b" Z3 u4 B2 i7 l1 E+ K$ k 12:30 撠 xxx.txt 瑼獢畾箸
$ x5 y3 G! W( x4 k* 銵函內瘥交瘥賢瑁
% L0 k4 ~* U! g h# T血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
4 b# ?. U1 E6 C9 k* d靘:# every two hours at the top of the hour
0 j2 F1 a8 m0 H; j8 w5 X 0 */2 * * * date
; c6 v! u; s1 k # every two hours from 11p.m. to 7a.m., and at 8a.m.
! f0 V( o8 w! ]' V+ r7 [ 0 23-7/2,8 * * * date& ~: g' e4 D1 c1 }
' j$ y. e) g/ c1 T: }. L渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php" w! C6 p X0 i# |, M
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潸” 2015-9-22 22:11:29
嗉
鈭
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