Run a script as any user

Hi_This_is_Dev · 09-25-2010, 09:15 PM

I have a script that displays the IP Address of a given network interface / device name.

I have placed it in /bin/ip.sh

Code:

[root@mahadeva ~]# ip.sh eth0
192.168.56.15

But as I run it as another user, it doesn't work because the script contains the "ifconfig" command:

Code:

[root@mahadeva ~]# su - DEV
[DEV@mahadeva ~]$ ip.sh eth0
/bin/ip.sh: line 3: ifconfig: command not found

Any user can run ls command, for example, without any root privileges. I just found that my script and ls have identical ACL:

Code:

[DEV@mahadeva ~]$ getfacl /bin/ls
getfacl: Removing leading '/' from absolute path names
# file: bin/ls
# owner: root
# group: root
user::rwx
group::r-x
other::r-x

[DEV@mahadeva ~]$ getfacl /bin/ip.sh
getfacl: Removing leading '/' from absolute path names
# file: bin/ip.sh
# owner: root
# group: root
user::rwx
group::r-x
other::r-x

[DEV@mahadeva ~]$

So, how can I make my script to be executable by any user?

I looked at the visudoers file but got confused as to what entries I should make there (if that is a possible solution).

macemoneta · 09-25-2010, 09:23 PM

You don't need privileges, you need to specify the path - /sbin/ifconfig - since 'command not found' means that it's not in your user's path.

AlucardZero · 09-25-2010, 09:25 PM

Your problem is "command not found", ie ifconfig is not on the user's PATH. Use the full path (/sbin/ifconfig) in your script.

That will help. But if your script wants to do things that normally only root can do, that won't be enough.

Hi_This_is_Dev · 09-25-2010, 10:53 PM

Quote:

Originally Posted by AlucardZero

But if your script wants to do things that normally only root can do, that won't be enough.

What is the solution for that?

AlucardZero · 09-26-2010, 08:51 AM

chmod the script suid root. But are you really sure you want to do that?

Hi_This_is_Dev · 09-26-2010, 08:57 AM

Quote:

Originally Posted by AlucardZero

chmod the script suid root. But are you really sure you want to do that?

Yes, I want to experiment anything I can think of.