windows - Find a line in a file and replace the next line

Question

Using a .bat script, I want to find a line that says # Site 1 and replace the text in the next line with a variable. I found tutorials on StackOverflow for finding and replacing a line, but not finding a line and replacing the next line. Any help?

Answer 1

@echo off

set "the_file=C:someFile"
set "search_for=somestring"
set "variable=http://site1"

for /f "tokens=1 delims=:" %%# in ('findstr /n  /c:"%search_for%" "%the_file%"') do (
    set "line=%%#"
    goto :break
)
:break


set /a lineBefore=line-1
set /a nextLine=line+1


break>"%temp%empty"&&fc "%temp%empty" "%the_file%" /lb  %lineBefore% /t |more +4 | findstr /B /E /V "*****" >newFile
echo %variable%>>newFile
more "%the_file%" +%nextLine% 1>>newFile

echo move /y newFile "%the_file%"

Check if newFile is ok and remove the echo at the front of the last line.

you need to set the three variables at the beginning by yourself.Have on mind that more command sets spaces instead of tabs