yeah, its kind of impossible until i modify my system to execute other commands in the startup, but is there a way to make the system or server sleep for say few secs and later pinging it to confirm that its active ? Please help, Thank you,

you know applying it using perl script, if yes please help Thank you,

Let me rephrase my question here again, i need to connect the system with ssh and then 1) the script should make the host to reboot 2) the script should ping for the Ip address after the reboot 3) once the host is back script should say host is up 4) then again script should start the reboot. is this possible ?

No Perl in the game.

#!/bin/bash
ssh root@machine 'reboot'
until ping -c1 machine ; do sleep 1; done
ssh root@machine 'reboot'
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لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

yes, as I think a number of people have already said. You can probably do most of it with a shell script even, without Perl. You since you're on ubuntu, you can edit the /etc/rc.local file to launch your script at startup. You can then do your thing, write yourself a note on how many times you still want to reboot, then let the shell script move on to the next step and reboot. The reboot steps probably have to run as root, but the rest can probably run as anybody. I'd probably return a 1 or a 0 from the Perl script to tell the shell whether to reboot or just go along it's way.