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
# B5 U2 M( D. @6 Kyum install vixie-cron 撠勗臬鋆摰* R3 k. i+ l4 C8 N: b
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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 root1 ^4 e% D2 K. |+ e: k
crontab 澆憒銝嚗
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閬瑁隞
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9 o' f$ z5 x$ C) U9 @ g# U30 12 * * * /usr/bin/rm xxx.txt; x$ K* x; Q3 V! D7 U
9 B0 F7 }7 G4 r7 A 12:30 撠 xxx.txt 瑼獢畾箸
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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
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0 */2 * * * date) |; t8 C3 P2 c j3 Z4 \
# every two hours from 11p.m. to 7a.m., and at 8a.m.
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潸” 2015-9-22 22:11:29
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