-.\" Copyright (c) 1993 Michael Haardt (michael@moria.de), Thu May 20 20:45:48 MET DST 1993
+.\" Copyright (c) 1993 Michael Haardt (michael@moria.de),
+.\" Thu May 20 20:45:48 MET DST 1993
.\"
+.\" %%%LICENSE_START(GPLv2+_DOC_FULL)
.\" This is free documentation; you can redistribute it and/or
.\" modify it under the terms of the GNU General Public License as
.\" published by the Free Software Foundation; either version 2 of
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public
-.\" License along with this manual; if not, write to the Free
-.\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111,
-.\" USA.
+.\" License along with this manual; if not, see
+.\" <http://www.gnu.org/licenses/>.
+.\" %%%LICENSE_END
.\"
.\" Modified Sat Jul 24 17:11:07 1993 by Rik Faith (faith@cs.unc.edu)
.\" Modified Sun Nov 21 10:49:38 1993 by Michael Haardt
.\" Modified Sun Feb 26 15:09:15 1995 by Rik Faith (faith@cs.unc.edu)
-.TH SHELLS 5 1993-11-21 "" "Linux Programmer's Manual"
+.TH SHELLS 5 2017-11-26 "" "Linux Programmer's Manual"
.SH NAME
shells \- pathnames of valid login shells
.SH DESCRIPTION
and available to be queried by other programs.
.PP
Be aware that there are programs which consult this file to
-find out if a user is a normal user. E.g.: ftp daemons traditionally
+find out if a user is a normal user;
+for example,
+FTP daemons traditionally
disallow access to users with shells not included in this file.
+.SH FILES
+.I /etc/shells
.SH EXAMPLE
.I /etc/shells
may contain the following paths:
-.sp
-.RS
+.PP
+.in +4n
+.EX
.I /bin/sh
-.br
+.I /bin/bash
.I /bin/csh
-.RE
-.SH FILES
-.I /etc/shells
-.SH "SEE ALSO"
+.EE
+.in
+.SH SEE ALSO
.BR chsh (1),
-.BR getusershell (3)
+.BR getusershell (3),
+.BR pam_shells (8)