Wake-on-LAN command line tool to wake up a server given a domain/ip-address and MAC address
gem install wakeup and you will now have wakeup command in your terminal.
You can wakeup a host by passing the ip address/hostname and optionally MAC address
wakeup 192.168.1.11
OR
wakeup hostname
OR
wakeup some.host.com 01:23:45:67:89:ab