ECHO

Displays or hides the text in batch programs when the program is 
running. Also indicates whether the command-echoing feature is 
on or off.

Note:

To display whether the ECHO status is on, use command "ECHO". 
When echo status is on, every command is displayed before 
running, together with the command prompt.

To turn on/off ECHO status, use command "ECHO ON|OFF".

To display specified information, use command "ECHO info".

To display an empty line, use command "ECHO.".

To turn off the echo of a single line in the batch file, use 
character "@" before the line. For example: "@echo Hello". In 
this way, you can turn off the echo without displaying the 
command line: "@echo off".

For more information, please refer to MS-DOS Help or Windows NT 
command line command help.