Shulou(Shulou.com)06/02 Report--

Crontab usage format description

Time-sharing, day, month and week order

The first column represents minutes 1: 59 per minute or / 1

The second column represents the hour 023 (0 means 0)

The third column represents the date 1: 31

The fourth column represents the month from January to December.

Column 6 commands that need to be run

[root@localhost ~] # crontab-l # View the set task

[root@localhost ~] # crontab-e # set scheduled tasks

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