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[linux隞也 crontab 雿輻冽澆

[銴鋆賡包
頝唾唳摰璅撅
璅銝
潸” 2015-9-22 22:11:29 | 芰閰脖 撣 |摨閬 |梯璅∪
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4 t9 v7 u' d2 U, E0 S

/ J% L  S, C+ A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
5 I2 X+ z5 @6 S; k& o. _yum install vixie-cron    撠勗臬鋆摰- u; L7 V9 |+ D) D
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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
. N/ R. t# m+ @; d5 E3 gcrontab 澆憒銝嚗/ L" r, K0 h- `' M7 s* a! M2 n7 K! \
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               閬瑁隞
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30 12   *   *   *       /usr/bin/rm xxx.txt
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) B7 C4 ~. W7 [* w. G0 @" D5 A3 ]4 x 12:30 撠 xxx.txt 瑼獢畾箸
% ?9 \/ P& a2 n: B( O& P5 c9 i" o* 銵函內瘥交瘥賢瑁
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血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
7 O  K4 \1 x* {, ^  H7 l/ w$ }靘:# every two hours at the top of the hour
6 m! i6 j; v- B9 V- U$ N' h           0 */2 * * * date" u1 N4 \4 K( L7 x5 C. B$ a! J
# every two hours from 11p.m. to 7a.m., and at 8a.m.' q6 Q8 R% k9 v: O3 c5 o
           0 23-7/2,8 * * * date
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渲底蝝啣臬:  http://linux.vbird.org/linux_basic/0430cron.php
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