How to write a batch file that deletes files that have a line with the given content in the given directory?

Question

Command line

Hello, I need your help.

Answer 1

help: https://ss64.com/nt/
hint from KO:
you will need a command that searches for lines in files (one of)
you will need a command that executes another command for all the results of the third command
you will need a command that deletes files ( haha, sorry).
Or take powershell (stop digging out the stewardess torturing cmd )
Both scripts will turn out to be quite simple, both on Posh and on cmd

Answer 2

More or less like this:

@echo off
chcp 1251 1>nul
set "find_str=search string"
set "search_dir=c:\temp"
for %%a in (%search_dir%) do (
   findstr /C:"%find_str%" "%%~a" 1>nul 2>&1 && del /f /q "%%~a"
)

The batch file bypasses all files in the directory specified by search_dir, in each file it looks for the line contained in find_str, if the line is found, it deletes the file.
Batnik did not test. First, practice on test files.
The text in the files must be encoded in cp1251. If the search text is English, then the encoding is not so important in principle.