Discovering What Shell You're Using
When you first log in to your Unix account, you'll be using the default shell on your system. The default shell, its features, and its options depend completely on what your system administrator specifies. Code Listings 3.1 and 3.2 show examples of how default shell prompts differ on two different systems.
Code Listing 3.1. This ISP account uses the /bin/csh shell by default.
To discover what shell you're using:
Code Listing 3.2. On hobbes, a Linux system, the default shell is /bin/bash.