Sorry if this seems noob question.

Never had to restart my machine but I need a quick restart .

Does anyone know the command that will reboot the machine?

Thanks in advance

Try 'reboot'.

That's what I use...

'init 6' will also work. It will switch you to "runlevel 6"

Init is the process control program. It starts processes as well as switches your current runlevel (and starting the processes set to run within that runlevel). Runlevel 6 is reserved for restart, and runlevel 0 is halt (however I dont suggest you do that on an SM box, unless you like making reboot requests ). Type 'man init' or 'man runlevel' to get more information about those two things. The 'reboot' and 'shutdown' commands give you a little more flexibility if you need to set extra options, like forcing a restart "right this very second" as opposed to shutting down the system properly, or setting a timed delay. However, for a standard restart, 'init 6', 'reboot', and 'shutdown -r now' will all do the same thing.

I know it's way more than you asked for, but I wish people told me these things when I was a newbie.

I think the best way is to just type: reboot

That does a graceful reboot, such as restarting windows, as opposed to just hitting the off switch and doing a forced reboot.

oh? I thought I read somewhere that shutdown -r now was the best thing to do.. for some reason or another. I didn't think it was a 'hard' reboot.

Why is 'reboot' better?

Are you saying it shuts down programs nicely, and then reboots the OS, instead of just hard rebooting?

It's not. They do the same thing, at least when the box is in its normal runlevel.

From the reboot man page:

<sarcasm>Or you can simply type: "poweroff"

Then send a reboot request to SM. </sarcasm>