debian报错bash deb: command not found的解决方法

例如

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

打开 sources.list 在最后面添加一条源

$> nano /etc/apt/sources.list

添加

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

最后更新下

$> sudo apt-get update

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