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8 <sect1 id="ch-config-shells" xreflabel="Creating the /etc/shells File">
9 <?dbhtml filename="etcshells.html"?>
13 <othername>$LastChangedBy$</othername>
17 <title>Creating the /etc/shells File</title>
19 <indexterm zone="ch-config-shells">
20 <primary sortas="e-etc-shells">/etc/shells</primary>
23 <para>The <filename>shells</filename> file contains a list of
24 login shells on the system. Applications use this file to determine
25 whether a shell is valid. For each shell a single line should be
26 present, consisting of the shell's path, relative to the root of the
27 directory structure (/).</para>
29 <para>For example, this file is consulted by <command>chsh</command>
30 to determine whether an unprivileged user may change the login shell for her
31 own account. If the command name is not listed, the user will be denied of
34 <para>It is a requirement for applications such as
35 <application>GDM</application> which does not populate the
36 face browser if it can't find <filename>/etc/shells</filename>, or
37 FTP daemons which traditionally disallow access to users
38 with shells not included in this file.</para>
40 <screen role="root"><userinput>cat > /etc/shells << "EOF"
41 <literal># Begin /etc/shells
46 # End /etc/shells</literal>
47 EOF</userinput></screen>