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
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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
& y- R9 `, h4 x& C" c. d% Q3 Q# ^yum install vixie-cron 撠勗臬鋆摰. d$ r0 u7 ^% u; Q+ q( s
: T1 n- t7 N u" a3 |% b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. f" u* T+ M( t. W' ]# C* o
crontab 澆憒銝嚗
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靘憒:
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, L% N! B# \# `$ M30 12 * * * /usr/bin/rm xxx.txt( L% ^1 y. S Q3 m9 |1 J0 ~% D
m4 B# n& {' E% ? 12:30 撠 xxx.txt 瑼獢畾箸" c# r$ B! r' m9 \1 B o
* 銵函內瘥交瘥賢瑁
& `# U1 _. Q/ Y" z血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm0 l/ P1 G2 y2 o- i) y1 F7 b- X
靘:# every two hours at the top of the hour
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# every two hours from 11p.m. to 7a.m., and at 8a.m.6 `" H; j( ?" K& R) N! V
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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
嗉
鈭
霈
