Nall is a small status icon application that
discreetly fits into the system tray. Its purpose
is to spawn a list of user scripts periodically
and display one line of output per script in a
tooltip window. Thus, it is possible to "monitor"
any kind of event that can be detected with a
script. Nall does not care about the return values
of the scripts it runs, but only displays their
output. It is also easy to interface nall with
Nagios plugins.