Batch file to add characters to beginning and end of each line in txt file

Question

I have a text file, I was wondering anyone have a batch file to add \" to the beninning and \", at the end of each line in a text file?

For example I have

Answer 1

set "f=PATH\FILE.txt"
call :add_str_beginning_end_each_line "BEGIN_LINE--" "--END_LINE" "%f%"


REM : Adds strings at the beginning and end of each line in file
:add_str_beginning_end_each_line
    set "str_at_begining=%~1"
    set "str_at_end=%~2"
    set "input_file=%~3"

    set "tmp_file=tmp.ini"

    REM : >NUL => copy command is silent
    REM : Make a backup
    copy /Y "!input_file!" "!input_file!.bak" >NUL
    copy /Y "!input_file!" "!tmp_file!" >NUL
    del "!input_file!"

    REM : Add strings at each line
    for /f "delims=" %%a in (!tmp_file!) do (
        >>"!input_file!" echo !str_at_begining!%%a!str_at_end!
    )

    REM : delete backup
    del "!tmp_file!"
    del "!input_file!.bak"

    REM : exiting the function only
    EXIT /B 0

You can edit the code :

    "!input_file!" echo !str_at_begining!%%a!str_at_end!

By removing !str_at_end! to add str only at the beginning of the line, where %%a is the actual line.