Some handy command prompt (Windows console ) commands for Windows

Command example	What it does
net use	Shows the paths to all the mapped drives
ping www.google.com	Checks the response time for a request sent to google.com and also lists the ip address that is assigned to google.com
ping -a 98.139.183.24	Gives the Domain name assigned to the ip address 98.139.183.24
tracert www.yahoo.com	Traceroute will print out a list of all the routers, computers, and any other Internet entities that your packets must travel through to get to their destination.
shutdown -t 0 -r -f	Restart a computer through command prompt. (Comes in handy when connected to a remote windows machine)
NET GROUP myGroupName /domain	This command will give you all the members in the active directory group myGroupName
qwinsta /server:servername	Tells you who all are logged into a remote server.
netstat	Netstat (network statistics) is a command-line tool that displays network connections (both incoming and outgoing)