crontab to run 59 minutes, 23rd hour, every single day?

sdowney717 · 07-09-2017, 09:49 AM

59 23 * * * /home/scott/Desktop/mmm.sh

Will this run the script at 23:59 every single day?

I dont suppose you can have it run at seconds like
23:59:50 ?
so 10 seconds before midnight.

jmgibson1981 · 07-09-2017, 09:50 AM

only minutes. yes that looks correct for 23:59

sdowney717 · 07-09-2017, 09:54 AM

Thanks, I realized my script if set to run at @midnight would record the file names with the next day what was recorded the previous day, which would not make sense.
So if one minute of recording happens after 23:59, it will be shoved into the next day, but I can live with it.

This is my script line

mv /home/scott/testmotion/motion-files /home/scott/testmotion/motion-files--$(date +%a-%m-%d-%Y---%H:%M:%S)

af7567 · 07-09-2017, 12:23 PM

If you wanted it to run closer to midnight you could make it run at 23:59 and put a "sleep 50" at the start of your script to make it wait before doing anything.

edit: you might want to check that it does get run at exactly 23:59 by cron first though, if cron is a bit behind and you make your sleep too long then it could end up running after midnight.

sdowney717 · 07-09-2017, 06:53 PM

Quote:

Originally Posted by af7567

If you wanted it to run closer to midnight you could make it run at 23:59 and put a "sleep 50" at the start of your script to make it wait before doing anything.

edit: you might want to check that it does get run at exactly 23:59 by cron first though, if cron is a bit behind and you make your sleep too long then it could end up running after midnight.

Thanks, good idea to sleep.