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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- ~8 W: g* L% U, p# z/ J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
7 w% O. b' f i3 R( W+ [+ oyum 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
( _; E" I" N& C; E* x/ Z. rcrontab 澆憒銝嚗7 M9 O8 t/ n6 `' V( R
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閬瑁隞
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6 i# V$ Q% J K30 12 * * * /usr/bin/rm xxx.txt
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12:30 撠 xxx.txt 瑼獢畾箸
9 X$ w% L$ M' u+ U" H* 銵函內瘥交瘥賢瑁
A+ }" k) e1 R! Q1 R血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
6 R A5 t' F K靘:# every two hours at the top of the hour7 G: T9 t, [+ C. S( b8 W2 }: ]1 c
0 */2 * * * date
$ @' K7 W& ]% c: G0 e# g J8 R # every two hours from 11p.m. to 7a.m., and at 8a.m., v2 ~1 F0 c4 Q9 r& Z8 I( q
0 23-7/2,8 * * * date4 Q9 |8 n9 a* r% i8 M8 S: ]
0 I& @) w' m8 m: K渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php$ x; w4 K5 w9 X9 h0 g0 ^7 a, R: |
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潸” 2015-9-22 22:11:29
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