check_users plugin problem [Solved]

[Sil <Spam>]

I think I solved the problem.
In my tests I've try the plugin in a user shell, a sudo shel and a root 
shell (su - )
But when I restart a service I use sudo.
$ sudo /etc/init.d/nagios restart

So I try to restart Nagios service in a root shell :
$ su -
pw
# /etc/init.d/nagios restart

And now it works, the own difference is the answer text is now in 
English !!! Not important.
Take care at the plugin answer :
maugain at sarge:~$ /usr/lib/nagios/plugins/check_users -w3 -c10

UTILISATEURS OK - 1 utilisateurs actuellement connectés sur |users=1;3;10;0

me at sarge:~$ su -
Password:

sarge:~# /usr/lib/nagios/plugins/check_users -w3 -c10
USERS WARNING - 4 users currently logged in |users=4;3;10;0


Thanks for your help.
Sil

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