Stupid batch file tricks

BatchfileTricks.cmd

:: Sleep for N seconds:

ping localhost -n N -w 1



:: Get the date and time (US LOCALE ONLY)

set YEAR=%DATE:~-4,4%
set TWOYEAR=%DATE:~-2,2%
set MONTH=%DATE:~-10,2%
set DAY=%DATE:~-7,2%

set HOUR=%TIME:~0,2%
set MINUTE=%TIME:~3,2%
set SECOND=%TIME:~6,2%



:: Remove leading zeroes from a number (with a known maximum):

set DAYOFWEEK=06
set /a DAYOFWEEK=7%DAYOFWEEK% %% 7



:: Call a subroutine

call :SubroutineName ParamOne "ParamTwo"

:SubroutineName
echo This is a subroutine!
echo Arg1=%~1
echo Arg2=%~2
goto :EOF



:: Exit a subroutine batch file without killing the outer batch file

exit /b



:: Send the last line of output to a variable

for /F "delims=" %%A in ('uuidgen.exe') do set MYVAR=%%A


:: Generate a guid and store it in %GUID%

for /F "delims=" %%A in ('powershell -command "$([guid]::NewGuid().ToString())"') do set GUID=%%A


:: Command line arguments

%0   -- File name of the running batch file
%*   -- All command line arguments, as entered
%1   -- First command line argument
%~1  -- First command line argument with surrounding quotes removed

%~f1 -- First command line argument as a fully qualified path name
%~d1 -- First command line argument as a drive letter
%~p1 -- First command line argument as a path
%~n1 -- First command line argument as a file name
%~x1 -- First command line argument as a file extension
%~s1 -- First command line argument as a short file name
%~a1 -- First command line argument as file attributes
%~t1 -- First command line argument as a time and date of file
%~z1 -- First command line argument as a file size