On Wed, 2003-09-24 at 09:05, Matthew.Quinney@xxxxxxxxxxxxxxxxxxxxx wrote: > Seth, > > I am running simply yum check-update, but nothing is returned to > Nagios at all. Nagios simply reports 'No output!'. > > From running the command at the command line, should I expect to see a > 0 returned ? > No - nothing is outputted on stdout - it's return code to the shell is 0 try this: yum check-update; echo $? -sv