You can find out your computer name from command line using hostname command.
c:\> hostname techblogger-pc
Note that hostname prints only the NetBios name of the computer, not the full DNS name. It works on all Windows versions- XP, Vista, Windows 7, Server 2003 and Server 2008.
System name is also stored in the environment variable computername. We can print the computer name using this environment variable as follows.
c:\>echo %computername% WINCMD-PC c:\>
Note that, %computername% is more convenient to use in batch files. We can straight away use %computername% wherever we want to refer the local host name.
Get DNS or FQDN(fully qualified domain name) of the computer
net config workstation | findstr /C:"Full Computer name"
Find computer name using wmic
wmic computersystem get name