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: ^ [' M6 H4 `) W* M
! C; n) x. W5 r) @7 C; \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 * ?( E# |0 u# }4 w* e
yum install vixie-cron 撠勗臬鋆摰
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+ m, e, L. N8 F9 ?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
, s- G" ~" e; n0 k. Fcrontab 澆憒銝嚗
% B5 \ s1 b7 d! t9 ~ ^6 b4 o s" [& R4 h( `5 j
閬瑁隞9 ~, b0 g% x# h5 U
靘憒:/ J$ Q+ }: a* {) c) y# i* D1 B8 q
; I9 ^$ t' H) ~: ~* z6 A( J1 s0 v \30 12 * * * /usr/bin/rm xxx.txt( n$ ?% l5 ] ~$ U5 B# T
; W: u) ^4 G- d6 ^# i$ D- g/ w& {6 C 12:30 撠 xxx.txt 瑼獢畾箸 V. H$ B, x5 D+ z0 p( C
* 銵函內瘥交瘥賢瑁
! ]" B# c3 O7 u血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm( | h+ k; s8 t4 d
靘:# every two hours at the top of the hour( g* ^2 m! ^9 L. `) t
0 */2 * * * date" S3 P4 e% W. m8 `: s( \
# every two hours from 11p.m. to 7a.m., and at 8a.m.
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3 _8 [1 [$ A, J7 W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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