How to delete a line of a text file, given the line number using batch (.bat) script?

Question

I want to write a batch script where the user can enter the line number and the script will delete that line of a text file.

Eg: tmp.txt

1. aaa
2. bb         


        

Answer 1

try out this:

@echo off & setlocal 
set "InFile=Z:\Text.txt" 
set "OutFile=Z:\Erg.txt" 
set /p LineToDelete=

if exist "%OutFile%" del "%OutFile%" 
for /f "tokens=1* delims=:" %%i in ('findstr /n $ "%InFile%"^|findstr /b "%LineToDelete%:"') do findstr /v /b /c:"%%j" "%InFile%">>"%OutFile%"