The Microsoft NET command is a must-know for administrators. Study it. A list of the major commands:

C:\>net help computer
The syntax of this command is:


NET COMPUTER \\computername {/ADD | /DEL}

NET COMPUTER adds or deletes computers from a domain database. This
command is available only on Windows NT Servers.

\\computername Specifies the computer to add or delete from
the domain.
/ADD Adds the specified computer to the domain.
/DEL Removes the specified computer from the domain.

A brief summary follows:

net accounts Updates user accounts and modifies password and logon requirements.
net computer Adds or deletes computers from a domain.
net config Displays configuration info for workstation or server services.
net continue Reactivates a service that has been suspended by NET PAUSE.
net file Closes a shared file and removes file locks.
net group Adds, displays, or modifies global groups on servers.
net helpmsg Displays info about network messages such as error, warning, and alert messages.
net localgroup Modifies local groups on computers.
net name Adds or deletes an alias name for a computer.
net pause Suspends a service or resource. Pausing a service puts it on hold.
net print Displays print jobs and shared queues. For each queue, the display lists jobs, showing the size and status of each job, and the status of the queue.
net send Sends messages to other users or computers. The Messenger service must be running to receive messages.
net session Lists or disconnects sessions between the computer and other computers on the network.
net share Makes resources available to network users. When used without options, it lists information about all resources being shared on the computer.
net start Lists running services.
net statistics Displays the statistics log for the local Workstation or Server service.
net stop Stops services.
net time Synchronizes the computer's clock with the domain.
net use Connects a computer to a shared resource or disconnects a computer from a shared resource.
net user Creates and modifies user accounts on computers. When used without switches, it lists the user accounts for the computer.
net view Displays a list of resources being shared on a computer. When used without options, it displays a list of computers in the current domain or network.