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
/ a: T1 {3 Z: Q) K3 ^% o' G8 _
- f* l- A% s% M" Y$ O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 V/ B$ m$ f) {4 ~* _: k/ nyum install vixie-cron 撠勗臬鋆摰- Y) x* F! n4 }' |5 Y7 e
% K% v" \3 {1 N' {, N6 o, y+ P: 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
- E, I, p7 |9 e4 k# c3 I1 bcrontab 澆憒銝嚗$ {7 }, ?7 j+ R
7 W2 \, O' ^: S5 Q) t
閬瑁隞
$ q9 V+ W/ |0 Q% k靘憒:2 |, C, h- B# Y7 v$ h
/ }4 D5 J: M% ` p
30 12 * * * /usr/bin/rm xxx.txt& N ^! E* ^0 u$ ~# r9 k
8 ]1 I" X% m9 K- Q( i7 I/ I$ @
12:30 撠 xxx.txt 瑼獢畾箸
0 H% p8 e* ^ Q: P9 c `* 銵函內瘥交瘥賢瑁
5 q, t* S }. w7 ~血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm. P- U# W" n2 b- W8 W
靘:# every two hours at the top of the hour( L+ H8 Z: J% x4 |) [' J" I
0 */2 * * * date
& @: y+ z% o2 a: @% @ # every two hours from 11p.m. to 7a.m., and at 8a.m./ Z! J0 p- f) X; r
0 23-7/2,8 * * * date
1 Z6 }, d$ s' {7 c' b
# m/ x. o0 r- M) O1 `6 H渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php9 b% w/ ?5 a5 P ?" @( m
: m( C: J7 s9 X& n
+ z2 j& C) e' ]! H {+ k0 C8 J0 C; [& z& t2 g
- k5 M/ o; `5 Y
|
|
潸” 2015-9-22 22:11:29
嗉
鈭
霈
