ECHO : write on CMD (MS DOS) screen
@ECHO : @ at the beginning mean “do not show this command on running screen”
@REM : “NOTE sentence” – write a note in a batch file.
:POINT1 : Denote a point in batch file
GOTO POINT1 : jump to POINT1, skip all command below GOTO and above POINT1
@ECHO This text > file.txt : overwrite file
@ECHO Thi text >> file.txt : append to the file
%VARIABLE% : variable in batch file, locate between %…%
@SET VAR=This Value : assign variable in batch file
@SET VAR=%VAR% and This Text (new VAT is “This Value and This Text”)
@SET /A VAR=%VAR%+1 (/A mean attribute, result is VAR is 2 + 1 = 3)
@IF %VAR%==0 (command) ELSE (command)
@IF %VAR%==0 DO (command)
@ECHO This Text>File.txt : ECHO command writes text to file with ANSI encoding
@wmic.exe /APPEND:File.txt /NODE:%PC_Name% CPU GET SYSTEMNAME : WMIC command writes text to file with UNICODE encoding.