run a script as root evry 30 mins

[hightokeinyoda]

hi all i need to run a script evry 30 mins as root.

the problem is the system gets shut down at 1pm evry nite.

cron is useless and anacron do it once a day at random.

is there any other solutions?.

im running Kubuntu 20.0.4

Sent from my POT-LX1 using Tapatalk

[oshunluvr]

cron is designed precisely for this and it is not useless, except maybe if you don't know how to use it.

man cron

[hightokeinyoda]

cron is designed precisely for this and it is not useless, except maybe if you don't know how to use it.

man cron

but what happens when the system reboots?

Sent from my POT-LX1 using Tapatalk

[GreyGeek]

hi all i need to run a script evry 30 mins as root.

the problem is the system gets shut down at 1pm evry nite.

cron is useless and anacron do it once a day at random.

is there any other solutions?.

im running Kubuntu 20.0.4

Sent from my POT-LX1 using Tapatalk

You can't run anything IF your system is shut down. While your system is running cron is a system process (daemon) running all the time and checks the crontab to see if it needs to do anything. Read the cron manual (man cron) to see how to create your own entries or crontabs.

[jlittle]

hi all i need to run a script evry 30 mins as root.

That's what cron and anacron are for, but they have lots of gotchas. As far as I can remember, the randomness can be configured.

the problem is the system gets shut down at 1pm evry nite.

Do you mean 1 am? 1 pm is about the middle of the day (usually).

The computer's firmware (often called the BIOS, even on UEFI systems) might have "wake up" settings, which will power it up when you want it to.

systemd surely does this kind of thing (it tries to do everything, one system to bring them all and in the darkness bind them ).

[hightokeinyoda]

thanks guys got it nailed turned out i was fudgeing my cron syntax.

changed my mind and set it to do the task evry hour and every 30 minutes.

now it works like a charm

Sent from my POT-LX1 using Tapatalk