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2 n) @0 P7 L& u, _, `
+ D, _( U5 Z' a( B! l- I! ^9 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 ; l0 b" v C; R% q! u
yum install vixie-cron 撠勗臬鋆摰
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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
$ y8 O5 V- Y6 g* v* N. zcrontab 澆憒銝嚗0 p1 [, F1 A* ]1 b
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閬瑁隞# O' Q5 D- [: s( [7 k2 j
靘憒:( i; d3 c) \9 w5 E
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30 12 * * * /usr/bin/rm xxx.txt# G0 |, r. C, L( Z v4 Z+ |
9 B% p$ i+ h. P0 z) M- m. a% x6 A 12:30 撠 xxx.txt 瑼獢畾箸! ~( N9 m5 E: T6 Y9 S, ~1 v
* 銵函內瘥交瘥賢瑁2 n: L. P- S! l- h
血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm4 p) Z( |7 D: h* D& Q* p% G, i/ {
靘:# every two hours at the top of the hour
# v% n( G7 T, y: w! C( ~ 0 */2 * * * date5 N, g- _5 `) Z2 _2 l
# every two hours from 11p.m. to 7a.m., and at 8a.m.
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渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php
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潸” 2015-9-22 22:11:29
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