41 lines
1.0 KiB
Markdown
Executable File
41 lines
1.0 KiB
Markdown
Executable File
```txt
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.---------------- minute (0 - 59)
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| .------------- hour (0 - 23)
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| | .---------- day of month (1 - 31)
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| | | .------- month (1 - 12) OR jan,feb,mar,apr ...
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| | | | .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
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| | | | |
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* * * * * user-name command to be executed
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```
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Here are some examples to illustrate different cron job schedules:
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### Example 1: Run at 12:55 every day
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```
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55 12 * * * root hi
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```
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This command runs `hi` as the `root` user every day at 12:55.
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### Example 2: Run every minute
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```
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*/1 * * * * root hi
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```
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This command runs `hi` as the `root` user every minute.
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### Example 3: Run every 2 minutes
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```
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*/2 * * * * root hi
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```
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This command runs `hi` as the `root` user every 2 minutes.
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### Example 4: Run at specific minutes
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```
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10,20,30 10 * * * root hi
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```
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This command runs `hi` as the `root` user at 10:10, 10:20, and 10:30.
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### Example 5: Run after every reboot
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```
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@reboot root hi
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```
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This command runs `hi` as the `root` user after system reboot.
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