ClientName
From Environment Variables
ClientName environment variable returns value of ComputerName environment variable of a remote host. The ClientName environment variable is Terminal Services specific, and only appears in a user's environment when they are logged on to a Terminal server, in Remote Administration or Application Server mode.
echo %ClientName% MyServer
Default value
ClientName environment variable doesn't have default value.
See also
AllUsersProfile | AppData | CD | ClientName | CmdCmdLine | CmdExtVersion | ComSpec | CommonProgramFiles | ComputerName | Date | ErrorLevel | HomeDrive | HomePath | LocalAppData | LogonServer | Number Of Processors | OS | Path | PathExt | Processor Architecture | Processor Identifier | Processor Level | Processor Revision | ProgramFiles | Prompt | Random | SessionName | SystemDrive | SystemRoot | Temp | Time | Tmp | UserDnsDomain | UserDomain | UserName | UserProfile | WinDir