Beginner scripting: ^@ appearing at the end of text

Question

I\'m trying to create a script that helps creating shebangs (Ok, it may not be that useful but has advantages when you don\'t know where the program is, for example), here\'

Answer 1

Probably the which command output contains the NULL character.

The system() function replaces line breaks with s. (from :help system()). Therefore you could do:

let path = substitute(system('which ' . program), '\%x00', '', 'g')

Otherwise you could do the following:

function! CreateShebang()
    call inputsave()
    0 put = '#!/usr/bin/env ' . input('Enter the program name: ')
    call inputrestore()
endfunction