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# P9 |( r3 Y/ R- M, Q
3 ^4 I( R+ } U- d; R2 [$ Z" f
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
" V+ u; k, _% A/ o) Pyum install vixie-cron 撠勗臬鋆摰
' M0 h9 g4 L; U# {' g3 V* e6 G+ T- j; D1 k" z
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. D3 t) h$ f2 m8 Q7 G$ L
crontab 澆憒銝嚗8 {1 m, L, I5 S' x6 q. I& e: w# B" E
# F: x) k2 [" F- o6 _- m
閬瑁隞' k" B3 G) A# C: o: B
靘憒:9 [2 h; s& \; x
5 s: E i% _0 _$ ?$ ~7 @
30 12 * * * /usr/bin/rm xxx.txt
: G% [0 r) j8 G/ T
, [' W* b6 E) U% l2 h2 O! `3 y. |3 X 12:30 撠 xxx.txt 瑼獢畾箸
! H5 F; j; K) j9 u( m2 F3 N0 N1 k/ u* 銵函內瘥交瘥賢瑁! b6 e8 }0 Q7 l; g3 _+ @
血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
' z4 m) a9 }9 ]8 z靘:# every two hours at the top of the hour5 M4 `7 X! k$ \/ |: J }( ?
0 */2 * * * date
8 K' F$ ]: U7 h9 w # every two hours from 11p.m. to 7a.m., and at 8a.m.; u% \. A* X4 i1 _/ J
0 23-7/2,8 * * * date* ^9 W, L- U2 h# O4 J
) U8 ~# B3 \/ f1 e* ~
渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php& { _9 q! J7 ]6 A4 X2 r
, s7 k" a$ l3 X9 H( j
9 c. [% _% r2 X' U# V1 Z0 O* n. I% y
. \6 b; U0 K$ D2 }' L" r |
|
潸” 2015-9-22 22:11:29
嗉
鈭
霈
