how to check if a parameter (or variable) is numeric in windows batch file -

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i need check if parameter passed windows batch file numeric or not.

i found below answer using "findstr" command regular expression: https://superuser.com/questions/404338/check-for-only-numerical-input-in-batch-file

i did try solution it's not working. (at least in windows 7 not working).

test scenarios:

aa  #not valid number a1  #not valid number 1a  #not valid number  11  #a valid number 

set "var="&for /f "delims=0123456789" %%i in ("%1") set var=%%i if defined var (echo %1 not numeric) else (echo %1 numeric)

replace %1 %yourvarname% appropriate


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