Set Crontab for CronJobs in Linux

Article Title: Set Crontab for CronJobs in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

Crontab command basic syntax:

Crontab-e: edit the crontab of the user. It is created when the specified crontab does not exist.

Crontab-l lists crontab of the user.

Crontab-r: Delete the user's crontab.

Crontab-u <User Name> Specify the name of the user whose crontab is to be set.

Crontab? V shows the last editing time (only available on some operating systems)

Add Crontab

* ***/Path/to/sh. file

* Minute 0-59

* Hours 0-23

* Day 1-31

* Month 1-12

* The day of each week is 0-6, and Sunday is the first day.

The default cronjobs will send an email to the user when executing the task.

If you do not need it, run the following command to disable it. >/Dev/null 2> & 1

In fact, data is sent as an email only when Cronjobs has an error or data output.

Edit the/etc/crontab file configuration cron

SHELL =/bin/bash

PATH =/sbin:/bin:/usr/sbin:/usr/bin

MAILTO = root // the user who receives the email

HOME =/