How do I schedule a timed reboot of my server in seconds? [closed]

Question

I’m using bash shell on Linux …

$ uname -a
Linux sandbox.mydomain.com 3.4.76-65.111.amzn1.x86_64 #1 SMP Tue Jan 14 21:06:49 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

although it would be nice if I could come up with a solution in any bash supported environment. My question is, in my script I want to scheduled a delayed reboot of my server in 5 seconds. So far, I have the below, but it takes 60 seconds …

# Timed reboot of server
sudo shutdown -r 1

# Fail if any of the sub-deployments failed.
if [[ ( $PROC1_STATUS -ne 0 ) ||
      ( $PROC2_STATUS -ne 0 ) ||
      ( $PROC3_STATUS -ne 0 ) ]]
then
        exit 1;
fi

Does anyone know how I can adjust the above except make the timed reboot in 5 seconds instead of a minute? The solution doesn't have to use "shutdown" but it was the only tool I could find.

• Dave

Carmelo

Answer 1

Try

 sleep 5 ; reboot

on your terminal (as root). If you want it in the background, try

 ( sleep 5 ; reboot ) & 

See also shutdown(8)

Ragen

Hi, This seems close but the statements after the "reboot" line don't seem to be getting executed because the system sleeps, the reboot happens and then execution stops. – Carmelo

Another variant: nohup sudo -b bash -c 'sleep 5; reboot' &>/dev/null; <other commands> – Marilou