Turns command-echoing on or off. Show or hide the command being executed
2000, 2005 (N), 2005 (I), 2008 (N), 2008 (I),2008r2(N), 2008r2(I), Azure
(N)=Native
(I)=Integrated
@ECHO {on|off}
on Turns on command echo
off Turns off command echo
@echo on
@echo off
none