reboot [ redhat]

hasanatizaz · 03-13-2008, 03:45 PM

i would like to know is there any way to reboot/shutdown my pc in seconds ?
i m using rhel 5.

jailbait · 03-13-2008, 04:08 PM

Quote:

Originally Posted by geniushasan

i would like to know is there any way to reboot/shutdown my pc in seconds ?
i m using rhel 5.

Root can reboot your computer by issuing the command:

shutdown -r now

How long it takes to shutdown and reboot varies a lot from one machine to another.

------------------
Steve Stites

hasanatizaz · 03-14-2008, 04:39 PM

usually reboot or 'shutdown now 'takes a single sec to activate the command
shutdown -h -t time 1
the above command usually shutdown pc in 1 minute i wanted to shutdown it down in 15 secs ?

jailbait · 03-14-2008, 04:51 PM

Quote:

Originally Posted by geniushasan

usually reboot or 'shutdown now 'takes a single sec to activate the command
shutdown -h -t time 1
the above command usually shutdown pc in 1 minute i wanted to shutdown it down in 15 secs ?

Sorry, I misinterpreted your question to mean that you wanted a fast reboot. If you want 15 seconds to elapse between issuing the shutdown command and it taking effect then use:

shutdown -r -t 15

-------------------
Steve Stites

hasanatizaz · 03-15-2008, 05:42 AM

shutdown -r -t 15
doesnt work.

Nylex · 03-15-2008, 08:26 AM

Quote:

Originally Posted by geniushasan

shutdown -r -t 15
doesnt work.

You really should have read the output from shutdown:

Usage: shutdown [-akrhHPfnc] [-t secs] time [warning message]
-a: use /etc/shutdown.allow
-k: don't really shutdown, only warn.
-r: reboot after shutdown.
-h: halt after shutdown.
-P: halt action is to turn off power.
-H: halt action is to just halt.
-f: do a 'fast' reboot (skip fsck).
-F: Force fsck on reboot.
-n: do not go through "init" but go down real fast.
-c: cancel a running shutdown.
-t secs: delay between warning and kill signal.
** the "time" argument is mandatory! (try "now") **