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9 f4 M# d$ r5 M' t% W
0 @8 [2 V/ W* h/ V: i7 w! k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 $ ]7 y4 _; ~) M4 c0 [6 f p' x( A
yum install vixie-cron 撠勗臬鋆摰
6 D% t" k) M) ~: I) W
) k$ _6 ^. \, S+ \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! A2 q3 u/ ~% n% k, J) z
crontab 澆憒銝嚗
* E, a+ B6 ~$ C* C' F' r" Q' ~& [! G% h9 d# P- @
閬瑁隞: q: ?! y, w1 i
靘憒:. C; t' y3 q3 H" }" h/ Y: @' q* t( g
$ N0 ` C+ _ z3 N n# f30 12 * * * /usr/bin/rm xxx.txt
0 c; w' R. A9 f; ]( G3 I% q+ n p1 d% u
12:30 撠 xxx.txt 瑼獢畾箸
4 G" @; G. j0 ~& k" `" Y7 k* w* 銵函內瘥交瘥賢瑁
% g6 A. R# X$ K+ u1 b血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
% d( s$ W# @- g" q5 I$ g$ k靘:# every two hours at the top of the hour- C: O' i3 l: D: ~8 g
0 */2 * * * date' u% X1 \$ f3 ]; x0 |# X
# every two hours from 11p.m. to 7a.m., and at 8a.m.
}; g% G% e0 j( U" Y 0 23-7/2,8 * * * date. E2 P. |& `+ m X, W5 L
' J- y1 E2 G. _" O% k& H8 f' b渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php
2 h3 h5 N' X L" T
& G3 Z5 ^; U+ L! v$ ~5 F% ^6 @8 n7 }
6 J D/ p+ Q- T3 w1 q d( s
2 T8 F; F: c+ x* I+ q% T |
|
潸” 2015-9-22 22:11:29
嗉
鈭
霈
