"Ubuntu" Performs timed tasks (cron)

1. Open the Scheduled Task profile

Crontab-e

2. Writing timed Tasks
Time Commands and scripts
Example:/3 * * * * */soft/config/test.sh

The first 5 fields are time, the following one is the command

The first 5 meanings are:
Minutes 0-59
Hours 0-23
Day 1-31
Month 1-12
Week 0-6 0 indicates Sunday

* * * * * # Perform a task every minute
0 * * * * # 0 points per hour to perform a task, such as 6:00,10:00
6,10 * 2 * * # 2nd per month, 6 minutes per hour and 10 minutes to perform a task
*/3,*/5 * * * * # every 3 minutes or 5 minutes to perform a task, such as 10:03,10:05,10:06

3. Restart Crond after modification
sudo service cron restart

"Ubuntu" Performs timed tasks (cron)