# Change Default Shell For A User You can change the default shell program for a particular unix user with the `chsh` command. Just tell it what shell program you want to use (e.g. `bash` or `zsh`) and which user the change is for: ``` $ [sudo] chsh -s /usr/bin/zsh username ``` This command needs to be invoked with root privileges. This command updates the entry for that user in the `/etc/passwd` file. [source](http://superuser.com/questions/46748/how-do-i-make-bash-my-default-shell-on-ubuntu)