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 F ^* g% a# ^4 K& S- @1 t2 f
* S' Q0 n- r1 Q$ w5 w# b! Q3 T' C. Z4 ]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 ! `* c" I) N1 p% E9 ?% U7 ~- U
yum install vixie-cron 撠勗臬鋆摰% J( I/ ]- F* R5 l2 S
. H! T: I+ T9 `9 L/ c! Y% @0 A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! L6 q8 K$ Y+ h6 R% ]- D0 j
crontab 澆憒銝嚗
9 ]& {' {+ u% e* Q L0 h$ E$ |8 e* L ~
閬瑁隞
) ]* k" }- T) l: G$ `0 {7 ^! a靘憒:) ]5 s* v5 }* K* E0 C0 l8 {1 X
3 t/ V z' i# Y4 Y. t, Z
30 12 * * * /usr/bin/rm xxx.txt- ?2 ?% E' i: }# ?
" I, X& S% z( o% l. O, R9 ~
12:30 撠 xxx.txt 瑼獢畾箸
+ l/ p& K7 A ^# N3 D, A! @* 銵函內瘥交瘥賢瑁
, k: k$ m0 E1 Q+ b# \* q$ ? o血撖 crontab 瘜冽敹雿輻 蝯撠頝臬憒 rm 瑁瑼 敹撖急 /usr/bin/rm
" j4 j$ i$ o# V3 M7 W J# h靘:# every two hours at the top of the hour
8 G- [0 t+ c- f' M 0 */2 * * * date) V/ c' Z- I, i3 j" F' J: ~8 c1 T
# every two hours from 11p.m. to 7a.m., and at 8a.m.
4 Y* k& |" Q2 {) _3 r0 o1 G 0 23-7/2,8 * * * date
$ j: c: Y& B& {) G& W4 J9 {: j, P# z1 L0 R c& ^, m$ e8 F7 o- p4 B
渲底蝝啣臬: http://linux.vbird.org/linux_basic/0430cron.php! F) w% i- l2 @7 Z
# b* p w3 w! R9 M$ ?. Y
1 X) l# p! B* e8 p3 a+ S( c9 _
/ C% p( {& x; m. W4 x5 ~. N$ [+ M2 `/ t" _
|
|
潸” 2015-9-22 22:11:29
嗉
鈭
霈
