Question

As the title states I need a batch file to delete the FIRST 3 lines of a text file.

for example:

A    
B    
C    
D    
E   
F    
G

in this example I need A,B and C deleted along with the line

Answer 1

This should do it

for /f "skip=3 delims=*" %%a in (C:\file.txt) do (
echo %%a >>C:\newfile.txt    
)
xcopy C:\newfile.txt C:\file.txt /y
del C:\newfile.txt /f /q

That will re-create the file with the first 3 lines removed.

To keep the user updated you could integrate messages in the batch file in vbscript style or output messages in the command prompt.

@echo off
echo Removing...
for /f "skip=3 delims=*" %%a in (C:\file.txt) do (
echo %%a >>C:\newfile.txt
) >nul
echo Lines removed, rebuilding file...
xcopy C:\newfile.txt C:\file.txt /y >nul
echo File rebuilt, removing temporary files
del C:\newfile.txt /f /q >nul
msg * Done!
exit >nul

Hope this helps.