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6 M5 p5 V2 y% z% u8 V$ d& M) J- Z
, W8 A: d8 R9 R- O3 @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
, }, C. c/ W- `7 m$ H& F D. ^3 C. ?yum install vixie-cron 撠勗臬鋆摰
' ?% U3 |; l! B. P, C1 H3 ~' E
- m+ U2 ^2 y, V/ g1 U. z3 t G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$ p9 A+ R! J V6 b6 b. n, m) Q
crontab 澆憒銝嚗
1 N5 V2 r O4 o9 l! V J
1 M+ L% t9 w; w6 X0 C 閬瑁隞
; t2 m3 H U: w6 g) s靘憒:
8 I/ q0 h W, W6 u. g7 p' g ~/ k2 P+ j2 @: |+ L+ X
30 12 * * * /usr/bin/rm xxx.txt
5 R2 c9 g. M! g( M/ w8 S6 C7 P" e5 }& r9 G5 a
12:30 撠 xxx.txt 瑼獢畾箸* O% \1 v1 k4 G$ n' ~8 H% K
* 銵函內瘥交瘥賢瑁
5 S& k+ F9 I+ f$ }4 Y2 J! [血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
: W5 L, _ h% R# G靘:# every two hours at the top of the hour. L, G' J/ l s% `4 L
0 */2 * * * date& o |& o& R3 ]. o; h
# every two hours from 11p.m. to 7a.m., and at 8a.m.
* S: _" o, Y) V 0 23-7/2,8 * * * date" p1 x4 r2 Y4 ^* N! C8 ?6 g
1 y% d& ~; f9 U* E* f渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php
6 ?/ ]1 k% I' N8 m, O( j5 f$ a: U5 {) E$ P3 w* Y6 ?
: k3 p9 | m2 d( `
, b+ r1 x$ W$ D# w2 C- w. R* L
% s/ _6 I8 \0 Z/ l7 v5 y0 e |
|
潸” 2015-9-22 22:11:29
嗉
鈭
霈
