Description
This plugin is part of Official Nagios® Plugins package and its documentation be found here.
Example of use and return of command
You must access the command directory before running it trough the following path: /usr/local/opmon/libexec/
[root@opmon]# ./check_users -w 3 -c 5 USERS OK - 2 users currently logged in |users=2;3;5;0