Add repository on Debian when "deb" command is not available

deb: command not found.md

deb: command not found

This gist seems to be not working anymore

Possible alternative solution https://unix.stackexchange.com/a/508728 ( not tested )

The Problem

$> deb http://ftp.debian.org/debian jessie-backports main
-bash: deb: command not found

The Solution

Open sources.list with sudo ( if available )

$> nano /etc/apt/sources.list

Paste the deb command in the end of file

deb http://ftp.debian.org/debian jessie-backports main

And them run

$> sudo apt-get update

Source

https://ubuntuforums.org/showthread.php?t=889435

example.source.list

deb http://debian.mirror.locaweb.com.br/debian/ jessie main non-free contrib
deb http://debian.mirror.locaweb.com.br/debian/ jessie-updates main contrib non-free
deb http://debian.mirror.locaweb.com.br/debian-security/ jessie/updates main contrib non-free
deb http://ftp.debian.org/debian jessie-backports main

Ohh no :"<

Ign:1 http://ftp.debian.org/debian jessie-backports InRelease
Err:3 http://ftp.debian.org/debian jessie-backports Release
  404  Not Found [IP: 130.89.148.12 80]
Hit:2 http://kali.cs.nctu.edu.tw/kali kali-rolling InRelease
Reading package lists... Done
E: The repository 'http://ftp.debian.org/debian jessie-backports Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.