icli, perlbrew

Two things I should remember:

• icli is a command-line interface to Icinga, the Nagios fork. However, it works well enough for Nagios itself if invoked like so:

icli  -c /var/spool/nagios/objects.cache -f /var/spool/nagios/status.dat

(assuming you've got the Nagios files in those locations). And by "well enough", I mean that it will show the current state of all services.

• perlbrew is an excellent way of maintaining Perl in your home directory...like, say, because icli requires a newer version of Perl than CentOS provides. It even lets you switch the version of Perl you use in a shell on the fly, like modules. Ver' nice.