Cronjob

A very useful website: https://crontab.guru

# ┌───────────── minute (0 - 59)
# │ ┌───────────── hour (0 - 23)
# │ │ ┌───────────── day of month (1 - 31)
# │ │ │ ┌───────────── month (1 - 12)
# │ │ │ │ ┌───────────── day of week (0 - 6) (Sunday to Saturday;
# │ │ │ │ │                                       7 is also Sunday on some systems)
# │ │ │ │ │
# │ │ │ │ │
# * * * * *  command_to_execute
Commanddescription
crontab -eEdit crontab file, or create one if it doesn’t already exist.
crontab -lcrontab list of cronjobs , display crontab file contents.
crontab -rRemove your crontab file.
crontab -vDisplay the last time you edited your crontab file. (This option is only available on a few systems.)