I-Linux Crontab isebenzisa imiyalo yomsebenzi weskripthi njalo futhi isetha ukusetshenziswa kwefayela lokumisa

LinuxInqubo ye-cron eyakhelwe ngaphakathi ingasisiza ukuthi sihlangabezane nezidingo zokwenza imisebenzi ehleliwe. Ngokusebenzisa izikripthi ze-cron nezegobolondo, ayikho inkinga ekwenzeni njalo imiyalo yemisebenzi eyinkimbinkimbi kakhulu.

Iyini i-Cron?

Esivame ukukusebenzisai-crontabumyalo, okufushane kuthebula le-cron.

Kuyifayela lokucushwa le-cron, elingabuye libizwe ngohlu lwemisebenzi.

Singathola amafayela okumisa afanele kumafolda alandelayo.

• I/var/spool/cron/ directory igcina imisebenzi ye-crontab yomsebenzisi ngamunye okuhlanganisa impande, futhi umsebenzi ngamunye uqanjwe ngomdali.
• /etc/crontab Leli fayela linomthwalo wemfanelo wokuhlela imisebenzi ehlukahlukene yokuphatha nokulungisa.
• /etc/cron.d/ Lolu hlu lwemibhalo lusetshenziselwa ukugcina noma yimaphi amafayela noma imibhalo ye-crontab okufanele isetshenziswe.
• Futhi singafaka imibhalo ku-/etc/cron.hourly, /etc/cron.daily, /etc/cron.weekly, /etc/cron.monthly izinkomba, ivumele isebenze njalo ngehora/usuku/isonto, inyanga.

Isetshenziswa kanjani i-Crontab?

Imiyalo yethu esetshenziswa kakhulu yilena elandelayo:

crontab [-u username]　　　　//省略用户名表示操作当前用户的crontab
    -e      (编辑工作表)
    -l      (列出工作表里的命令)
    -r      (删除工作表)

sisebenzisacrontab -eFaka ukuhlelwa kweshidi lomsebenzisi wamanje, okuyi-interface ye-vim evamile.Umugqa ngamunye ungumyalo.

Hlela Ishidi Lokusebenza▼

crontab -e

Faka ohlwini amaphepha okusebenza▼

crontab -l

Susa ishidi lokusebenza ▼

crontab -r 

Umyalo we-crontab wakhiwe isikhathi + isenzo, futhi isikhathi saso siumzuzu, ihora, usuku, inyanga, isontoEyesihlanu, u-opharetha unayo

• * zonke izinombolo ebangeni
• / zingaki izinombolo
• - kusuka ku-X kuya ku-Z
• ,izinombolo ze-hash

Isibonelo Somyalo Womsebenzi Ohleliwe we-Crontab

Isibonelo 1: Sebenzisa i-MyCommand njalo ngomzuzu o-1

* * * * * myCommand

Isibonelo sesi-2: Ukubulawa emizuzwini yesi-3 neye-15 yehora ngalinye

3,15 * * * * myCommand

实例3：在上午8点到11点的第3和第15分钟执行

3,15 8-11 * * * myCommand

实例4：每隔两天的上午8点到11点的第3和第15分钟执行

3,15 8-11 */2  *  * myCommand

实例5：每周一上午8点到11点的第3和第15分钟执行

3,15 8-11 * * 1 myCommand

Isibonelo sesi-6: Qala kabusha i-smb ngo-21:30 njalo ebusuku

30 21 * * * /etc/init.d/smb restart

实例7：每月1、10、22日的4 : 45重启smb

45 4 1,10,22 * * /etc/init.d/smb restart

Isibonelo sesi-8: Qala kabusha i-smb ngo-1:10 njalo ngoMgqibelo nangeSonto

10 1 * * 6,0 /etc/init.d/smb restart

Isibonelo sesi-9: Qala kabusha i-smb njalo ngemizuzu engama-18 phakathi kuka-00:23 no-00:30 nsuku zonke

0,30 18-23 * * * /etc/init.d/smb restart

Isibonelo se-10: Qala kabusha i-smb njalo ngoMgqibelo ngo-11:00 ebusuku

0 23 * * 6 /etc/init.d/smb restart

Isibonelo se-11: Qala kabusha i-smb njalo ngehora

* */1 * * * /etc/init.d/smb restart

Isibonelo se-12: Qala kabusha i-smb njalo ngehora phakathi kuka-11pm no-7am

* 23-7/1 * * * /etc/init.d/smb restart

Ungawususa kanjani umsebenzi othile we-Crontab?

SSH faka umyalo olandelayo we-crontab ▼

crontab -e

• Uma uthatha imisebenzi eminingi, susa umsebenzi ohleliwe oshiwo ku-vim (hambisa isikhombisi emugqeni wokumisa ukuze ususwe, cindezela ukhiye wokususa ukuze ususe)

cindezela :wq londoloza bese uphuma

Hlola ukuze ubone ukuthi umsebenzi we-Crontab ususiwe yini?

crontab -l

• Kutholakala ukuthi umsebenzi ohleliwe we-crontab osanda kususwa awukho, okusho ukuthi ukususwa kuphumelele.

Iphaneli yokulawula ye-CWPUyisetha Kanjani Imisebenzi Ehleliwe ye-Crontab

• Emsebenzini oshejuliwe, engeza umyalo wokuvumelanisa ukuze uvumelanise ngokuzenzakalelayo amafayela ayisipele wephaneli yokulawula ye-CWP ku-GDrive.

Uma usebenzisa i-CWP Control Panel, ngena ku-CWP Control Panelka Server Setting → Crontab for root ▼

Ku-"Engeza Imisebenzi Ye-Cron Engokwezifiso Egcwele", faka umyalo we-cron ngokwezifiso ngokugcwele ▼

00 7 * * * rclone sync /backup2 gdrive:cwp-backup2
55 7 * * * rclone sync /newbackup gdrive:cwp-newbackup

• (Vumelanisa ngokuzenzakalelayo uhla lwemibhalo lwendawo njalo ekuseni ngo-7:00 am /backup2kwidiski yenethiwekhi enegama lokumisa elithi gdrivebackup2Okuqukethwe)
• (Vumelanisa ngokuzenzakalelayo uhla lwemibhalo lwendawo njalo ekuseni ngo-7:55 am /newbackup  kwidiski yenethiwekhi enegama lokumisa elithi gdrivecwp-newbackupOkuqukethwe)
• VumelanisaWordPressKumafayela ewebhusayithi, kunconywa ukuthi ungagcini ngokunyuka, ngoba ukuhlolwa kuthole ukuthi uma amagama amafayela afana, kodwa okuqukethwe kwamafayela kuhlukile, ngeke avumelaniswe.

ngenxa yokuqalisa kwesikhathii-rcloneNgemva kokuqedwa kokuvumelanisa okuzenzakalelayo, inqubo ye-rclone ingase iqhubeke ngemuva, ezothatha kufika ku-20% wezinsiza ze-CPU, okuholela ekumoshweni kwezinsiza zeseva.

Ngakho-ke, kuyadingeka ukwengeza umyalo womsebenzi ohlelwe ngokwezifiso ngokugcwele ukuphoqa inqubo ye-rclone ukuvala ▼

00 09 * * * killall rclone

• (Vala ngokuzenzakalelayo inqubo ye-rclone ngo-7:00 njalo ekuseni)

Uma iphaneli yokulawula ye-CWP ingakwazi ukuhlela imisebenzi ehleliwe ye-Crontab, ungasebenzisa i-FTP软件vula ifayela /var/spool/cron/ Hlela imisebenzi enesikhathi ye-Crontab ngokuqondile.

Ungasisebenzisa kanjani isipele se-rclone ku-VPS?Sicela uchofoze isixhumanisi esingezansi ukuze ubukeCentOSUkusebenzisa i-GDrive Automatic Sync Tutorial▼

Ungasisebenzisa kanjani isipele se-rclone ku-VPS? I-CentOS isebenzisa okokufundisa kokuvumelanisa okuzenzakalelayo kwe-GDrive

Njengoba indlela ephumelela kakhulu yokukhuthazwa kwenethiwekhi i-SEO, abathengisi abaningi benethiwekhi abanolwazi olucebile lwe-SEO bazokhetha ukuthenga i-VPS (i-Virtual Private Server) ukuze bakhe iwebhusayithi.Njengoba i-VPS isetshenziswa, kuyadingeka ukwenza isipele se-VPS. Isipele se-VPS singavunyelaniswa ne-GD ngesipele se-rclone...