[ILUG] Permissions

[Christian Koerner]

Philip Creevy wrote:
> cat returns pico:x:502:bob
> ls -l of /dev/bus/usb/001/009 returns 
> crw-rw---- 1 root pico 189, 8 Apr 29 22:08 /dev/bus/usb/001/009
>
> A script is checking that the user is in the pico group with
>
> username=$(id -un)
> usergroups=$(id -Gn)      id -Gn returns bob at the command line
>
>  # Determine whether the user is in the group of the file
>  grouptest=$(echo \ $usergroups\  | sed "s/.*\ \($group\)\ .*/\1/")
>
> I'am not a sed person so I would not know if the above is correct or not
> but it does work when logged in as root
>   

Do you mean the script works when you are logged in as root or just the 
line when you test it on the command line?

Your line seems to be ok, at least with the following test:
-- 
[@joe:~]$ export TEST=`id -Gn |sed "s/.*\ \(audio\)\ .*/\1/"`; echo $TEST
audio
[@joe:~]$
-- 

You can add on the beginning of the bash script (if it's bash) the 
following :
set -xv

That gives you some more details when the script runs.


cya,
Christian