Ubuntu command to constantly monitor a service

command-line-interfacegrepUbuntu

I was curious if anyone new a command like tail or top to constantly
monitor a service as it runs. I'm trying to watch sendmail currently
to see who is connecting to it, but would like to have it a little
more dynamic than just repeatedly typing ps aux | grep send

is there a good way to constantly keep this running? Thanks guys n' gals

Best Answer

You can use the watch command along with ps -aux to refresh. watch -n 5 "ps -axf |grep send" will run the ps command every 5 seconds (note the quotes).