Batch file needed for comparing two files

Question

This is my requirement in windows batch file I tried the following

Example:
f1.txt
sam
varun
ramesh
babu

f2.txt
babu
sam

I need the output of

varun
ramesh

The program

@echo on
SETLOCAL EnableDelayedExpansion
for /F "tokens=* delims=." %%a in (f1.txt) do (
    call :myInnerLoop "%%a"
)

echo out of inner loop
)
goto :eof


:myInnerLoop
for /F "tokens=* delims=." %%b in (f2.txt) do (
    if "%~1"=="%%b" (
    echo inside inner loop
        goto :next
    ) else ( 
        echo %%a >> "E:\test\diff.txt"
    )
:next
goto :eof

But it is not working kindly help me.

Even I tried diff utility also from http://gnuwin32.sourceforge.net/packages/diffutils.htm no help.

Answer 1

Your code is almost correct, but you have some () wrong. Try this one:

@echo off
del d:\test\windows\comp\diff.txt
SETLOCAL EnableDelayedExpansion
for /F "tokens=* delims=." %%a in (f1.txt) do (
    echo %%a
    call :myInnerLoop "%%a"
)

echo out of inner loop
goto :eof

:myInnerLoop
for /F "tokens=* delims=." %%b in (f2.txt) do (
    echo "x: " %~1
    echo "y: " %%b
    if "%~1"=="%%b" (
        echo next
        goto :next
    )
)
echo "Log " %~1
echo %~1 >> "d:\test\windows\comp\diff.txt"

:next
goto :eof