Running a cron job on Linux every six hours

Question

How can I run command every six hours every day   I tried the following  but it did not work    6            mycommand

User · Answer

You need to use    0   6        path to mycommand   Also you can refer to https   crontab guru  which will help you in scheduling better

User · Answer

You should include a path to your command  since cron runs with an extensively cut-down environment  You won t have all the environment variables you have in your interactive shell session   It s a good idea to specify an absolute path to your script binary  or define PATH in the crontab itself  To help debug any issues I would also redirect stdout err to a log file

User · Answer

Try   0   6       command       has to

User · Answer

0   6       command   This will be the perfect way to say 6 hours a day   Your command puts in for six minutes

User · Answer

You forgot a    and you ve too many fields  It s the hour you need to care about  0   6        path to mycommand   This means every sixth hour starting from 0  i e  at hour 0  6  12 and 18 which you could write as  0 0 6 12 18        path to mycommand

User · Answer

Please keep attention at this syntax       6         This means 60 times  every minute  every 6 hours   not  one time every 6 hours

User · Answer

0   6         crontab every 6 hours is a commonly used cron schedule

[linux] Running a cron job on Linux every six hours

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