[QUESTION] Linux Command Line Client available?

[Maverick87Shaka]

Dear all, it's not an issue but just a question, I would like to know if there is (already) a command line client for Linux. Basically I would like to run by a scripts several times for a day the test from a monitoring machine to some other servers, and I need to use a command line to grab the output to make it readable by the monitoring tool ( nagios )

Thanks