Hi all,

How can i shut down my Linux system by using command?

I've tried "shutdown now", but it dint work..

Anyone can tell me? Thank you....

As root run:
init 1

init 1 does not work....

bash: init: command not found

Anyone know why? Any other commands i can use?

Thanks...

init 1 is for single user mode. to halt system use
/sbin/init 0
or
/sbin/shutdown -h now

to run /sbin/init 0 or /sbin/shutdown -h now, i must be the root.
what command can i use if i wanna shut down as a user? is it permitted?

you can't unless you are root. (unless a non-root user was given root permissions which is unlikely)

normally not by default, but you could solve it by using the command ´sudo´, this allows normal users to execute commands with root rights.

type (as root!) visudo and edit the file, e.g.:

[...]
Cmnd_Alias COMMAND1 = /sbin/shutdown
[...]
userX LOCAL=NOPASSWD: COMMAND1
[...]


now the user userX should be permitted to shutdown.
another solution could be:
-adding a new group (shutdown),
-modifying rights of /sbin/shutdown (chown root:shutdown /sbin/shutdown): chmod 4754 /sbin/shutdown
-setting setUID-Bit: chmod 4754 /sbin/shutdown
to allow ONLY users from shutdown group, otherwise EVERYONE could shutdown your box

ok....

Thanks a lot...