How do I find my default shell in Linux?

readlink /proc/$$/exe – Another option to get the current shell name reliably on Linux operating systems. cat /etc/shells – List pathnames of valid login shells currently installed. grep “^$USER” /etc/passwd – Print the default shell name. The default shell runs when you open a terminal window.

How do I change bash to shell?

Hold the Ctrl key, click your user account’s name in the left pane, and select “Advanced Options.” Click the “Login Shell” dropdown box and select “/bin/bash” to use Bash as your default shell or “/bin/zsh” to use Zsh as your default shell. Click “OK” to save your changes.