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ali_molaei

Member

From: Iran

Registered: 2015-12-24

Posts: 63

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How to make a systemd-timer for every 90sec

How can I use systemd timers or even cron job to repeat a task every 61sec?

I can use OnCalender=*-*-* *:*:00/30 for example to do it every 30sec, but I want to do it for a number that is not fit in 60 seconds, Notice that *-*-* *:00/1:00/1 will fire first time after 61sec and after that it will be every 60sec (I think) because start it just looks at the expresion

Swiggles

Member

Registered: 2014-08-02

Posts: 266

Re: How to make a systemd-timer for every 90sec

You can specify multiple OnCalendar entries:

[Timer]
OnCalendar=*-*-* *:1/2:30
OnCalendar=*-*-* *:0/3:00

So this should work unless I made an error with the date syntax.

Edit: The answer below is much better.

Last edited by Swiggles (2019-09-12 13:07:18)

fijit

Member

Registered: 2012-07-06

Posts: 24

Re: How to make a systemd-timer for every 90sec

Or just

OnUnitActiveSec=90s

?