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<body class="manpage">
<div id="header">
<h1>
git-shell(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>git-shell -
Restricted login shell for Git-only SSH access
</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="verseblock">
<pre class="content"><em>chsh</em> -s $(command -v git-shell) <user>
<em>git clone</em> <user><code>@localhost:/path/to/repo.git</code>
<em>ssh</em> <user><code>@localhost</code></pre>
<div class="attribution">
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>This is a login shell for SSH accounts to provide restricted Git access.
It permits execution only of server-side Git commands implementing the
pull/push functionality, plus custom commands present in a subdirectory
named <code>git-shell-commands</code> in the user’s home directory.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_commands">COMMANDS</h2>
<div class="sectionbody">
<div class="paragraph"><p><em>git shell</em> accepts the following commands after the <em>-c</em> option:</p></div>
<div class="dlist"><dl>
<dt class="hdlist1">
<em>git receive-pack <argument></em>
</dt>
<dt class="hdlist1">
<em>git upload-pack <argument></em>
</dt>
<dt class="hdlist1">
<em>git upload-archive <argument></em>
</dt>
<dd>
<p>
Call the corresponding server-side command to support
the client’s <em>git push</em>, <em>git fetch</em>, or <em>git archive --remote</em>
request.
</p>
</dd>
<dt class="hdlist1">
<em>cvs server</em>
</dt>
<dd>
<p>
Imitate a CVS server. See <a href="git-cvsserver.html">git-cvsserver(1)</a>.
</p>
</dd>
</dl></div>
<div class="paragraph"><p>If a <code>~/git-shell-commands</code> directory is present, <em>git shell</em> will
also handle other, custom commands by running
"<code>git-shell-commands/<command> <arguments></code>" from the user’s home
directory.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_interactive_use">INTERACTIVE USE</h2>
<div class="sectionbody">
<div class="paragraph"><p>By default, the commands above can be executed only with the <em>-c</em>
option; the shell is not interactive.</p></div>
<div class="paragraph"><p>If a <code>~/git-shell-commands</code> directory is present, <em>git shell</em>
can also be run interactively (with no arguments). If a <code>help</code>
command is present in the <code>git-shell-commands</code> directory, it is
run to provide the user with an overview of allowed actions. Then a
"git> " prompt is presented at which one can enter any of the
commands from the <code>git-shell-commands</code> directory, or <code>exit</code> to close
the connection.</p></div>
<div class="paragraph"><p>Generally this mode is used as an administrative interface to allow
users to list repositories they have access to, create, delete, or
rename repositories, or change repository descriptions and
permissions.</p></div>
<div class="paragraph"><p>If a <code>no-interactive-login</code> command exists, then it is run and the
interactive shell is aborted.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_example">EXAMPLE</h2>
<div class="sectionbody">
<div class="paragraph"><p>To disable interactive logins, displaying a greeting instead:</p></div>
<div class="paragraph"><p>+</p></div>
<div class="listingblock">
<div class="content">
<pre><code>$ chsh -s /usr/bin/git-shell
$ mkdir $HOME/git-shell-commands
$ cat >$HOME/git-shell-commands/no-interactive-login <<\EOF
#!/bin/sh
printf '%s\n' "Hi $USER! You've successfully authenticated, but I do not"
printf '%s\n' "provide interactive shell access."
exit 128
EOF
$ chmod +x $HOME/git-shell-commands/no-interactive-login</code></pre>
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph"><p>ssh(1),
<a href="git-daemon.html">git-daemon(1)</a>,
contrib/git-shell-commands/README</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_git">GIT</h2>
<div class="sectionbody">
<div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
</div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
Last updated 2013-06-10 20:01:55 UTC
</div>
</div>
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