create user to shutdown system

mah454 · 12-06-2010, 04:34 AM

Hello .
Excuse me for bad English !

I need create user .
when user login --> system go to shutdown .

I create this script :

Code:

### Shutdown Script ###
#!/bin/bash

echo "System Shutdown ..."
shutdown -h now

and make executable this script in /usr/local/sbin/sholt

Code:

-rwsr-xr-x. 1 root root 48 Dec  5 17:54 /usr/local/sbin/sholt

now i do make user with this shell :

Code:

useradd -s /usr/local/sbin/sholt sysoff

my passwd :

Code:

sysoff:x:501:501::/home/sysoff:/usr/local/sbin/sholt

but do not work !

TB0ne · 12-06-2010, 07:49 AM

Quote:

Originally Posted by mah454

Hello .
Excuse me for bad English !

I need create user .
when user login --> system go to shutdown .

I create this script :

Code:

### Shutdown Script ###
#!/bin/bash

echo "System Shutdown ..."
shutdown -h now

and make executable this script in /usr/local/sbin/sholt

Code:

-rwsr-xr-x. 1 root root 48 Dec  5 17:54 /usr/local/sbin/sholt

now i do make user with this shell :

Code:

useradd -s /usr/local/sbin/sholt sysoff

my passwd :

Code:

sysoff:x:501:501::/home/sysoff:/usr/local/sbin/sholt

but do not work !

Right...it won't because you don't have permissions to shut down the system, and because you haven't specified the path to the shutdown command. First, put the user you just created into the SUDO'ers file, and make sure it doesn't prompt for a password. Then, in your script, modify the shutdown line to read:

Code:

sudo /sbin/shutdown -h now

.

chickenjoy · 12-06-2010, 08:36 AM

1. add the user in the sudoers file to allow him to shutdown the machine which typically only super users can do.

Code:

# echo "sysoff ALL=NOPASSWD: /sbin/shutdown -h now" >> /etc/sudoers

2. now login as the user 'sysoff' and every time you want to shutdown the machine; execute the following command exactly:

Code:

$ sudo /sbin/shutdown -h now

mah454 · 12-06-2010, 09:29 AM

thank you for answer .
I need auto shutdown system after login .

Code:

Login : sysoff
password : [Enter Password]
System Shutdown ... 
init: Need to be root

Login :

chickenjoy · 12-06-2010, 09:39 AM

3. login as sysoff and then run the following command:

Code:

$ echo "sudo /sbin/shutdown -h now" >> ~/.bash_profile

log-out and then try to log-in again as sysoff; the system will start the shutdown process. what this does is; it will run the command in step 2 automatically every time you start a login-shell (or login in layman's term).

mah454 · 12-06-2010, 09:48 AM

ooooooo !
Ok !
this script now work .

Thank you .

teethador · 12-31-2010, 03:37 AM

Good Morning:

This is exactly what I have for a shutdown script:

!#/bin/bash

sudo /sbin/shutdown -h now

Saved as Shutdown.sh

#whoami
root

#ls -l
-rwxr-xr-x 1 root root Shutdown.sh

#Shutdown.sh
bash: Shutdown.sh: command not found

What am I doing wrong?

Thank you in advance for the assistance.

teethador · 12-31-2010, 03:38 AM

If I click the Shutdown.sh on the desktop it works. But if I run it in Bash it does not execute and errors out.

Thanks for the feedback.

TB0ne · 12-31-2010, 09:12 AM

Quote:

Originally Posted by teethador

Good Morning:
This is exactly what I have for a shutdown script:

!#/bin/bash
sudo /sbin/shutdown -h now

Saved as Shutdown.sh

#whoami
root

#ls -l
-rwxr-xr-x 1 root root Shutdown.sh

#Shutdown.sh
bash: Shutdown.sh: command not found

What am I doing wrong?
Thank you in advance for the assistance.

The script isn't in your path, and you're not specifying it. Try "./Shutdown.sh", or "/some/path/to/Shutdown.sh".

Also, DON'T hijack someone elses thread with your question. Open your own thread for your own question.

teethador · 01-02-2011, 01:46 PM

Thanks and I won't again.