Question

I am writing a batch script which I wish to open a file and then change the second line of it. I want to find the string ‘cat’ and replace it with a value that I have SET i.e. %var% . I only want this to happen on the second line (or for the first 3 times). How would you go about doing this?

Answer 1

I just solve it myself. It will lookup var on line two only.

@echo OFF SETLOCAL ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION SET filename=%1 set LINENO=0     for /F 'delims=' %%l in (%filename%) do (  SET /A LINENO=!LINENO!+1  IF '!LINENO!'=='2' ( call echo %%l ) ELSE ( echo %%l ) ) 

But I prefer using cscript (vbscript or even jscript).