it could not use commd "shutdown"

[V. Nyga]

Hi,

>Thanks for your reply, but I feel little confused for PATH,
>For example, how to add comand (one full path) to specified enviroment parameter so
>that I do not need to execute this command with full path, how to do it ?

When you type in a command the shell searches all DIRECTORIES listed in PATH until it findes this command.
So you have to add the directory, not the command with full path.

V.