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<body class="manpage">
<div id="header">
<h1>
git-show-ref(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>git-show-ref -
   List references in a local repository
</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="verseblock">
<pre class="content"><em>git show-ref</em> [-q|--quiet] [--verify] [--head] [-d|--dereference]
             [-s|--hash[=&lt;n&gt;]] [--abbrev[=&lt;n&gt;]] [--tags]
             [--heads] [--] [&lt;pattern&gt;&#8230;]
<em>git show-ref</em> --exclude-existing[=&lt;pattern&gt;]</pre>
<div class="attribution">
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>Displays references available in a local repository along with the associated
commit IDs. Results can be filtered using a pattern and tags can be
dereferenced into object IDs. Additionally, it can be used to test whether a
particular ref exists.</p></div>
<div class="paragraph"><p>By default, shows the tags, heads, and remote refs.</p></div>
<div class="paragraph"><p>The --exclude-existing form is a filter that does the inverse. It reads
refs from stdin, one ref per line, and shows those that don&#8217;t exist in
the local repository.</p></div>
<div class="paragraph"><p>Use of this utility is encouraged in favor of directly accessing files under
the <code>.git</code> directory.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
--head
</dt>
<dd>
<p>
        Show the HEAD reference, even if it would normally be filtered out.
</p>
</dd>
<dt class="hdlist1">
--tags
</dt>
<dt class="hdlist1">
--heads
</dt>
<dd>
<p>
        Limit to "refs/heads" and "refs/tags", respectively.  These options
        are not mutually exclusive; when given both, references stored in
        "refs/heads" and "refs/tags" are displayed.
</p>
</dd>
<dt class="hdlist1">
-d
</dt>
<dt class="hdlist1">
--dereference
</dt>
<dd>
<p>
        Dereference tags into object IDs as well. They will be shown with "&#94;{}"
        appended.
</p>
</dd>
<dt class="hdlist1">
-s
</dt>
<dt class="hdlist1">
--hash[=&lt;n&gt;]
</dt>
<dd>
<p>
        Only show the SHA-1 hash, not the reference name. When combined with
        --dereference the dereferenced tag will still be shown after the SHA-1.
</p>
</dd>
<dt class="hdlist1">
--verify
</dt>
<dd>
<p>
        Enable stricter reference checking by requiring an exact ref path.
        Aside from returning an error code of 1, it will also print an error
        message if <code>--quiet</code> was not specified.
</p>
</dd>
<dt class="hdlist1">
--abbrev[=&lt;n&gt;]
</dt>
<dd>
<p>
        Abbreviate the object name.  When using <code>--hash</code>, you do
        not have to say <code>--hash --abbrev</code>; <code>--hash=n</code> would do.
</p>
</dd>
<dt class="hdlist1">
-q
</dt>
<dt class="hdlist1">
--quiet
</dt>
<dd>
<p>
        Do not print any results to stdout. When combined with <code>--verify</code> this
        can be used to silently check if a reference exists.
</p>
</dd>
<dt class="hdlist1">
--exclude-existing[=&lt;pattern&gt;]
</dt>
<dd>
<p>
        Make <em>git show-ref</em> act as a filter that reads refs from stdin of the
        form "<code>^(?:&lt;anything&gt;\s)?&lt;refname&gt;(?:\^{})?$</code>"
        and performs the following actions on each:
        (1) strip "&#94;{}" at the end of line if any;
        (2) ignore if pattern is provided and does not head-match refname;
        (3) warn if refname is not a well-formed refname and skip;
        (4) ignore if refname is a ref that exists in the local repository;
        (5) otherwise output the line.
</p>
</dd>
<dt class="hdlist1">
&lt;pattern&gt;&#8230;
</dt>
<dd>
<p>
        Show references matching one or more patterns. Patterns are matched from
        the end of the full name, and only complete parts are matched, e.g.
        <em>master</em> matches <em>refs/heads/master</em>, <em>refs/remotes/origin/master</em>,
        <em>refs/tags/jedi/master</em> but not <em>refs/heads/mymaster</em> or
        <em>refs/remotes/master/jedi</em>.
</p>
</dd>
</dl></div>
</div>
</div>
<div class="sect1">
<h2 id="_output">OUTPUT</h2>
<div class="sectionbody">
<div class="paragraph"><p>The output is in the format: <em>&lt;SHA-1 ID&gt;</em> <em>&lt;space&gt;</em> <em>&lt;reference name&gt;</em>.</p></div>
<div class="listingblock">
<div class="content">
<pre><code>$ git show-ref --head --dereference
832e76a9899f560a90ffd62ae2ce83bbeff58f54 HEAD
832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/master
832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/origin
3521017556c5de4159da4615a39fa4d5d2c279b5 refs/tags/v0.99.9c
6ddc0964034342519a87fe013781abf31c6db6ad refs/tags/v0.99.9c^{}
055e4ae3ae6eb344cbabf2a5256a49ea66040131 refs/tags/v1.0rc4
423325a2d24638ddcc82ce47be5e40be550f4507 refs/tags/v1.0rc4^{}
...</code></pre>
</div></div>
<div class="paragraph"><p>When using --hash (and not --dereference) the output format is: <em>&lt;SHA-1 ID&gt;</em></p></div>
<div class="listingblock">
<div class="content">
<pre><code>$ git show-ref --heads --hash
2e3ba0114a1f52b47df29743d6915d056be13278
185008ae97960c8d551adcd9e23565194651b5d1
03adf42c988195b50e1a1935ba5fcbc39b2b029b
...</code></pre>
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_example">EXAMPLE</h2>
<div class="sectionbody">
<div class="paragraph"><p>To show all references called "master", whether tags or heads or anything
else, and regardless of how deep in the reference naming hierarchy they are,
use:</p></div>
<div class="listingblock">
<div class="content">
<pre><code>        git show-ref master</code></pre>
</div></div>
<div class="paragraph"><p>This will show "refs/heads/master" but also "refs/remote/other-repo/master",
if such references exists.</p></div>
<div class="paragraph"><p>When using the <code>--verify</code> flag, the command requires an exact path:</p></div>
<div class="listingblock">
<div class="content">
<pre><code>        git show-ref --verify refs/heads/master</code></pre>
</div></div>
<div class="paragraph"><p>will only match the exact branch called "master".</p></div>
<div class="paragraph"><p>If nothing matches, <em>git show-ref</em> will return an error code of 1,
and in the case of verification, it will show an error message.</p></div>
<div class="paragraph"><p>For scripting, you can ask it to be quiet with the "--quiet" flag, which
allows you to do things like</p></div>
<div class="listingblock">
<div class="content">
<pre><code>        git show-ref --quiet --verify -- "refs/heads/$headname" ||
                echo "$headname is not a valid branch"</code></pre>
</div></div>
<div class="paragraph"><p>to check whether a particular branch exists or not (notice how we don&#8217;t
actually want to show any results, and we want to use the full refname for it
in order to not trigger the problem with ambiguous partial matches).</p></div>
<div class="paragraph"><p>To show only tags, or only proper branch heads, use "--tags" and/or "--heads"
respectively (using both means that it shows tags and heads, but not other
random references under the refs/ subdirectory).</p></div>
<div class="paragraph"><p>To do automatic tag object dereferencing, use the "-d" or "--dereference"
flag, so you can do</p></div>
<div class="listingblock">
<div class="content">
<pre><code>        git show-ref --tags --dereference</code></pre>
</div></div>
<div class="paragraph"><p>to get a listing of all tags together with what they dereference.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_files">FILES</h2>
<div class="sectionbody">
<div class="paragraph"><p><code>.git/refs/*</code>, <code>.git/packed-refs</code></p></div>
</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph"><p><a href="git-for-each-ref.html">git-for-each-ref(1)</a>,
<a href="git-ls-remote.html">git-ls-remote(1)</a>,
<a href="git-update-ref.html">git-update-ref(1)</a>,
<a href="gitrepository-layout.html">gitrepository-layout(5)</a></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 2016-07-13 14:58:50 PDT
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