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1 _8 Z/ [, J" }: `
: k6 n: @8 v& E; a3 s" j0 [- 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 * K' V# T" M. {9 A
yum install vixie-cron 撠勗臬鋆摰
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/ {0 x2 P. U: M5 o+ T( q- W3 J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
$ V9 }! J$ }/ S. `% O3 M$ gcrontab 澆憒銝嚗7 p! z: Z( q% r! {( E& V
5 |0 s9 ^+ M. B+ n# K7 { 閬瑁隞
9 o/ I6 x, W5 {# ]+ O) t靘憒:- g1 k. X" U- A9 w& Y2 B& y* u
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30 12 * * * /usr/bin/rm xxx.txt
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2 T% C1 S( q# A1 B/ ~ 12:30 撠 xxx.txt 瑼獢畾箸. a6 [3 P' J& C0 b/ i w- B
* 銵函內瘥交瘥賢瑁$ h1 s2 \6 N2 f7 _, _; b8 Y
血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm1 I" |8 a) u8 i; t' M$ l5 T8 J' {
靘:# every two hours at the top of the hour5 p# l: w! a) {+ L, L/ |
0 */2 * * * date
; N5 K0 S# {6 p # every two hours from 11p.m. to 7a.m., and at 8a.m.
, w4 Z$ Y! c8 K2 {4 u 0 23-7/2,8 * * * date
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渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php& U$ }5 s$ r, j$ d7 A& h& t
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潸” 2015-9-22 22:11:29
嗉
鈭
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