Issue

How can I run command every six hours every day?

I tried the following, but it did not work:

/6 * * * * *  mycommand

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Solution

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

Answered By - nos

Answer Checked By - Cary Denson (WPSolving Admin)