Function: Host Grep

This is a function to check what we have set-up as a hostname for the times that I forget an IP address for a device on the LAN. It checks the hosts file and the ssh-config. The hosts file has the IP address, but sometimes I can't remember the host-name, just the user-name, in which case checking the SSH config file can sometimes be helpful.

function hostgrep --argument-names HOST --description "Look for a hostname."