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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0 \/ }# h3 y  M' W/ J

: M/ L4 N2 l; D! D0 w/ h3 v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
; e4 b; E' Q, R; Kyum install vixie-cron    撠勗臬鋆摰
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! t4 f& _% [3 b5 i% ?1 L) u* m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 root5 H- T- y1 `. k# q, Q7 J
crontab 澆憒銝嚗
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# o" R' F9 o% o; Y& m! u+ c               閬瑁隞4 D9 T& Y; F* j0 Y" f% _* U
靘憒:
% F- b/ T2 k3 [  q0 m9 d$ m1 c* g: ~6 u% L" K. J' |
30 12   *   *   *       /usr/bin/rm xxx.txt
% Y* Q, u' ~* a- f4 ~( u) Z4 F( G# v5 n% `5 f1 E
12:30 撠 xxx.txt 瑼獢畾箸
" S! O6 E4 ?9 F* 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
/ o) {: F. `5 t# K+ X3 T# p8 X" S靘:# every two hours at the top of the hour
6 Q. _! ]$ W% c/ g7 z$ Z. @           0 */2 * * * date
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# every two hours from 11p.m. to 7a.m., and at 8a.m.
' m' m; L, i3 V  l8 |. ?0 R. K           0 23-7/2,8 * * * date
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9 g+ A9 t  o+ F3 E1 N4 O# r5 J" f渲底蝝啣臬:  http://linux.vbird.org/linux_basic/0430cron.php( I4 T5 Y# h6 v  W' y2 O! e
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