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" p% R0 |0 u, i5 S, E7 r) c+ U. v
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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 * J i/ r, l$ B! ?- B* R
yum install vixie-cron 撠勗臬鋆摰! u$ Y2 h m# |: g
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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
% x6 g5 d/ o* F! U7 Z8 Jcrontab 澆憒銝嚗
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閬瑁隞; |5 L, Z( u1 d: f
靘憒:# e; g) @/ n2 K/ H/ s
& ?% E$ C1 ]2 P+ ~; I; M$ e! F30 12 * * * /usr/bin/rm xxx.txt
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12:30 撠 xxx.txt 瑼獢畾箸$ p* n$ l/ ?, H0 B, w+ B
* 銵函內瘥交瘥賢瑁
. U1 K/ g$ _, L: j; ?6 l( O" G血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm U! @) _, c3 p0 x% I3 k5 u
靘:# every two hours at the top of the hour Q& s1 r. u( A+ z+ o/ b8 k0 G* Z
0 */2 * * * date
" Y. |9 G( y1 b T# V # every two hours from 11p.m. to 7a.m., and at 8a.m.
( h/ B9 ]" [, t; e8 F0 Y% F+ R 0 23-7/2,8 * * * date9 ~3 S2 C' S0 {# M L
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渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php1 c7 W6 y. n' e
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潸” 2015-9-22 22:11:29
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鈭
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