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
- J4 t: s9 n5 V, X# E) S7 N" ]
6 P! O* t6 w4 _" J/ f$ I. U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 $ P e8 x) {8 `7 B, S+ j- N# w& p r
yum install vixie-cron 撠勗臬鋆摰2 g" K: N) e+ l. s, N
% N7 o5 T' M' N3 }* m0 v3 x
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
' }' l9 ?% a7 i5 ]crontab 澆憒銝嚗( Q5 K: G0 G5 n2 q! N" W
9 ~( c* M3 s& t; s
閬瑁隞
1 T( O4 i' F0 u9 A# ?' M# c* r靘憒:$ Y; K# z! M' G1 c# R$ e' d
, F2 k: |+ s |& ?; F: k30 12 * * * /usr/bin/rm xxx.txt
8 G, M$ G7 G% _* G9 ^! A! ?4 i$ a0 ~$ ?- r# d! F& a: n4 V
12:30 撠 xxx.txt 瑼獢畾箸. E2 ^% l& Q) v+ ]( `2 }
* 銵函內瘥交瘥賢瑁/ `7 b* q; R- H4 E
血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
( z5 V) [. p3 b. ~靘:# every two hours at the top of the hour2 o R8 u) x8 l. ~1 o8 K
0 */2 * * * date
$ G0 T# l; O8 w( ], o$ Q* r2 `0 W # every two hours from 11p.m. to 7a.m., and at 8a.m.
; r% j$ c* k+ x: y( l7 c( k+ F 0 23-7/2,8 * * * date: e* [( R1 U( Z' j; ]! Y
- ]1 b6 h5 K: p* Y+ d% ?
渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php
) ]$ D- s- o: g
! L4 t' m6 U/ P% G2 j+ W% ?) D
% F% c) ~3 W) V
7 Z$ |. L' }9 C& p" u# o) M
3 T/ R# p j, b2 z1 p- u) U |
|
潸” 2015-9-22 22:11:29
嗉
鈭
霈
