Crontab Reboot on CentOS 7

[Bone8Head]

Hello guys.

I'm trying to Schedule an automatic reboot for my CentOS Server everyday at the 08:30 (a.m).
I put (with crontab -e) this command:

30 8 * * * root reboot

But is not working.
I tried this command aswell:

30 8 * * * root shutdown -r now

Can you help me out, please?

Thank you.

[peterwkc]

Hi,

Have you inspected the cron log file and see what happening that may become the root cause of the problem?

Have you successfully executed other cron command?

[giulix63]

See crontab man pages for valid syntax and examples:

Code: Select all

man crontab
man 5 crontab

Also, errors should be emailed to you by crond. Type

Code: Select all

mail

in a terminal and press Return to read the mail (q to quit).

[Emma Taylor]

Hi,

Which control panel are you using?

[TrevorH]

Why would you do this anyway?

[aks]

Probably wants the full path (so something like /sbin/reboot).

But yeah, don't do that....

[mashkoorqadir]

I am not sure that crontab can wake machines up. but you can try other ways. Such as
-you can wake a machine With a Magic packet
-you can set system with SRTC alarm to wake on the time.
-Most of machines have WOL option in BIOS you can set it to wake on scheduled time.
However you can shutdown your machine with crontab
let suppose you want to shutdown your machine at 5:30PM see the line below

30 17 * * * /sbin/shutdown -h now

save the crontab file and exit .