ubuntu / chsh / change shell

chsh is change login shell program.
it's contained in passwd package.

it's used like this:

$ cat /etc/passwd
...
x:x:1000:1000:Doo-Hyun Jang,,,:/home/x:/bin/bash

$ chsh
Password:
Changing the login shell for x
Enter the new value, or press ENTER for the default
Login Shell [/bin/bash]: /usr/bin/zsh

$ cat /etc/passwd
...
x:x:1000:1000:Doo-Hyun Jang,,,:/home/x:/usr/bin/zsh