Yuav Ua Li Cas Khiav Crowns

Cov txheej txheem:

Yuav Ua Li Cas Khiav Crowns
Yuav Ua Li Cas Khiav Crowns

Video: Yuav Ua Li Cas Khiav Crowns

Video: Yuav Ua Li Cas Khiav Crowns
Video: Yuav ua li cas By Nhia Lor [full version] 2024, Kaum ib hlis
Anonim

Tus txheej txheem txheem rau cov sijhawm teem tseg rau kev ua haujlwm ntawm UNIX-zoo li kev ua haujlwm yog cron. Feem ntau daim crond daemon pib thaum pib tsim. Txawm li cas los xij, rau ntau yam, qhov no yuav tsis tshwm sim. Koj tuaj yeem tso kronor manually lossis los ntawm kev teeb tsa nws cov ntawv rho tawm.

Yuav ua li cas khiav crowns
Yuav ua li cas khiav crowns

Tsim nyog

hauv paus muaj peev xwm

Cov Lus Qhia

Kauj ruam 1

Pib kev qhia ib zaug nrog cov cai superuser. Yog hais tias lub plhaub graphical yog thauj khoom, pib lub davhlau ya nyob twg qhov kev tshaj tawm thiab pib lub hauv paus sib kho los ntawm kev muab cov su hais kom. Xwb, mus rau ib qho ntawm cov ntawv sau ua ke los ntawm ib txhij nias Alt, Ctrl thiab F1-F12 thiab nkag mus ua lub hauv paus

Kauj ruam 2

Txheeb xyuas cov xwm txheej ntawm ntab ntov daemon. Khiav cov lus txib: kev pabcuam crond xwm txheej Yog tias koj pom cov lus xws li crond khiav, lub crond khiav, thiab koj tuaj yeem pib teeb tsa nws lossis ntxiv cov haujlwm. Yog tias cov lus no zoo li crond nres, qhov kev pabcuam tau nres, mus rau theem 5 los pib nws. Yog tias qhov kev pabcuam inscription: crond: Tsis muaj kev pabcuam raug tso tawm, cov cron yuav tau muab ntsia

Kauj ruam 3

Nruab ib qho kev siv cron los ntawm ib qho muaj peev txheej (chaw cia khoom ntawm OS faib daim disk, online tso tawm ntawm cov xa khoom tsim tawm, thiab lwm yam). Siv koj cov thawj tswj pob ntim zoo li apt-tau, rpm, thiab lwm yam. Koj tseem tuaj yeem rub tawm qhov code ntawm tus lej tsim nyog thiab tsim nws rau ntawm koj lub tshuab

Kauj ruam 4

Kho kho cron yog xav tau. Kho cov ntaub ntawv / thiab / crontab, /etc/cron.allow, /etc/cron.deny. Koj tuaj yeem nyeem txog hom ntawv txhawm rau nthuav tawm cov lus qhia hauv lawv hauv tus txiv neej lossis cov ntaub ntawv cov ntaub ntawv. Yog tias tsim nyog (tsis ua tiav thaum nruab cron), tso cov init tsab ntawv tso rau hauv /etc/rc.d/init.d cov npe. Tsim kev txuas rau nws nrog cov npe tsim nyog hauv cov ntawv sau cia rau txhua qib pib (feem ntau cov ntawv sau npe /etc/rc.d/rc1.d-/etc/rc.d/rc6.d)

Kauj ruam 5

Khiav lub hau yas. Khiav qhov hais kom ua: kev pabcuam crond pib Lub xov xwm xwm txheej yuav raug pom tias muaj qhov ua tiav lossis tsis ua haujlwm

Kauj Ruam 6

Yog tias tsim nyog, tsim cov haujlwm cron rau ib lossis ntau tus neeg siv. Tshawb xyuas cov khoom siv crontab los ntawm kev khiav cov lus txib: crontab --help Tsim cov haujlwm cron thiab muab nws nrog cov lus txib xws li: crontab -u anyuser filepath Qhov twg ib tus neeg siv yog tus username thiab filepath yog txoj hauv kev rau cov haujlwm. Hloov lwm txoj kev, siv lo lus txib crontab nrog -e kev xaiv: crontab -u ib tus neeg siv - Tshaj tawm cov ntawv sau xov xwm uas koj tuaj yeem hloov kho cov npe ntawm cov haujlwm.

Pom zoo: