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- <h4>Shells on a Linux system:</h4>
- <p>The file <code>/etc/shells</code> gives an overview of known shells on a Linux
- system:</p>
- <pre><code>$ cat /etc/shells
- /bin/bash
- /bin/sh
- /bin/tcsh
- /bin/csh
- </code></pre>
- <p>Your default shell is set in the <code>/etc/passwd</code> file, like this line
- for user euclid:</p>
- <pre><code>euclid:L2NOfqdlPrHwE:504:504:Euclid:/home/euclid:/bin/bash</code></pre>
- <p>To switch from one shell to another, just enter the name of the new shell in the
- active terminal. The system finds the directory where the name occurs using the
- <code>PATH</code> settings, and since a shell is an executable file, the current
- shell activates it and it gets executed. A new prompt is usually shown, because each
- shell has its typical appearence:</p>
- <pre><code>$ tcsh
- [euclid@machine ~]$
- </code></pre>
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