2007-10-07 17:14:02 +05:30
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.\" Copyright 1990, Julianne Frances Haugh
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of Julianne F. Haugh nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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2007-10-07 17:14:14 +05:30
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.\" $Id: chsh.1,v 1.5 2000/08/26 18:27:17 marekm Exp $
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2007-10-07 17:14:02 +05:30
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.\"
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.TH CHSH 1
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.SH NAME
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chsh \- change login shell
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.SH SYNOPSIS
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.TP 5
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\fBchsh\fR
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[\fB-s \fIlogin_shell\fR] [\fIuser\fR]
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.SH DESCRIPTION
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\fBchsh\fR changes the user login shell.
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This determines the name of the user's initial login command.
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A normal user may only change the login shell for their own account,
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the super user may change the login shell for any account.
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.PP
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The only restrictions placed on the login shell is that the
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command name must be listed in \fI/etc/shells\fR, unless the
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invoker is the super-user, and then any value may be added.
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An account with a restricted login shell may not change
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their login shell.
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For this reason, placing \fB/bin/rsh\fR in \fI/etc/shells\fR
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is discouraged since accidentally changing to a restricted
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shell would prevent the user from every changing their login
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shell back to its original value.
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.PP
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If the \fB-s\fR option is not selected, \fBchsh\fR operates in an interactive
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fashion, prompting the user with the current login shell.
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Enter the new value to change the field, or leave the line blank to use
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the current value.
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The current value is displayed between a pair of \fB[ ]\fR marks.
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.SH FILES
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/etc/passwd \- user account information
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.br
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/etc/shells \- list of valid login shells
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.SH SEE ALSO
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.BR chfn (1),
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.BR passwd (5)
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.SH AUTHOR
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2007-10-07 17:14:14 +05:30
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Julianne Frances Haugh (jfh@austin.ibm.com)
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