#### Linux From Scratch - Version 7.9

### Chapter 7. System Configuration and Bootscripts

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# 7.9. Creating the /etc/shells File

The `shells` file contains a list of login shells on the system. Applications use this file to determine whether a shell is valid. For each shell a single line should be present, consisting of the shell's path, relative to the root of the directory structure (/).

For example, this file is consulted by chsh to determine whether an unprivileged user may change the login shell for her own account. If the command name is not listed, the user will be denied of change.

It is a requirement for applications such as GDM which does not populate the face browser if it can't find `/etc/shells`, or FTP daemons which traditionally disallow access to users with shells not included in this file.

    cat > /etc/shells << "EOF"
    # Begin /etc/shells

    /bin/sh
    /bin/bash

    # End /etc/shells
    EOF

Last updated on 2007-04-04 14:42:53 -0500

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