sudo and providing rights to executable.

tank junior · 05-10-2011, 09:19 AM

Hi,

I am newbie on linux.
I have written a custom tool that requires sudo in order to (only read) access to some hardware information.

How do I provide sudo rights to this tool permanently so that any user or particular can execute it without sudo prefix?

NOTE: I only need read access.

Prashant

Snark1994 · 05-10-2011, 10:53 AM

You need to look in the /etc/sudoers file. Something like

Code:

%users ALL=/usr/local/bin/yourTool

should allow everyone in the 'users' group access to your tool

tank junior · 05-11-2011, 01:20 AM

Hi Snark1994,

I added this line in /etc/sudoers:

%users ALL=NOPASSWD: /usr/bin/lshw

I also tried using my user name:
anarki ALL=NOPASSWD: /usr/bin/lshw

log-out and log-in

when I type "lshw" (without sudo), I am still getting a warning:
WARNING: you should run this program as super-user.

and I am not getting all the info with "lshw".

Any pointers?

Prashant

tank junior · 05-11-2011, 01:20 AM

Hi Snark1994,

I added this line in /etc/sudoers:

%users ALL=NOPASSWD: /usr/bin/lshw

I also tried using my user name:
anarki ALL=NOPASSWD: /usr/bin/lshw

log-out and log-in

when I type "lshw" (without sudo), I am still getting a warning:
WARNING: you should run this program as super-user.

and I am not getting all the info with "lshw".

Any pointers?

Prashant

Snark1994 · 05-12-2011, 09:40 AM

Ah, sorry. You will still need to use 'sudo', it just won't ask anyone for a password. I don't know if this will work (I'm on my Windows machine atm so I can't test it) but you maybe able to try this:

Create a script '/usr/bin/lshwWrapper':

Code:

#!/usr/bin/bash
sudo /usr/bin/lshw

You can then call /usr/bin/lshwWrapper and with any luck it will run /usr/bin/lshw with root priveliges without you having to type 'sudo'

chrism01 · 05-12-2011, 08:57 PM

3 options

1. use sudo : this is the normal way as you've discovered; recommended

2. put user in group owner of lshw ; reasonable

3. make user the owner instead of root; not recommended