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
5 ~4 B2 @5 P9 G+ E5 Nyum install vixie-cron 撠勗臬鋆摰) D4 j+ m8 s. c! |* T! M) k: x o; {
/ W% L; V p. x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* H- j% g& G% p3 W2 B
crontab 澆憒銝嚗! ]4 s( s x# b/ T) h9 G1 D, U. T
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靘憒:
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: E1 h. \. n8 o3 D O8 A# y3 e 12:30 撠 xxx.txt 瑼獢畾箸; \, x7 G! m0 X
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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
% _( t# o% W R6 z! f! q1 v靘:# every two hours at the top of the hour
8 _- {. D/ g" \; P; ?6 N7 M 0 */2 * * * date
% j' Z, e& x6 M- i& u5 J! S% S1 C # every two hours from 11p.m. to 7a.m., and at 8a.m.+ j! ], u( r9 S8 A! A) y
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渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php/ n: W. [/ I' _7 J2 X# t
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潸” 2015-9-22 22:11:29
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