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| <title>git-symbolic-ref(1)</title> | |
| </head> | |
| <body> | |
| <div id="header"> | |
| <h1> | |
| git-symbolic-ref(1) Manual Page | |
| </h1> | |
| <h2>NAME</h2> | |
| <div class="sectionbody"> | |
| <p>git-symbolic-ref - | |
| Read and modify symbolic refs | |
| </p> | |
| </div> | |
| </div> | |
| <h2>SYNOPSIS</h2> | |
| <div class="sectionbody"> | |
| <p><em>git-symbolic-ref</em> [-q] [-m <reason>] <name> [<ref>]</p> | |
| </div> | |
| <h2>DESCRIPTION</h2> | |
| <div class="sectionbody"> | |
| <p>Given one argument, reads which branch head the given symbolic | |
| ref refers to and outputs its path, relative to the <tt>.git/</tt> | |
| directory. Typically you would give <tt>HEAD</tt> as the <name> | |
| argument to see on which branch your working tree is on.</p> | |
| <p>Give two arguments, create or update a symbolic ref <name> to | |
| point at the given branch <ref>.</p> | |
| <p>A symbolic ref is a regular file that stores a string that | |
| begins with <tt>ref: refs/</tt>. For example, your <tt>.git/HEAD</tt> is | |
| a regular file whose contents is <tt>ref: refs/heads/master</tt>.</p> | |
| </div> | |
| <h2>OPTIONS</h2> | |
| <div class="sectionbody"> | |
| <dl> | |
| <dt> | |
| -q | |
| </dt> | |
| <dd> | |
| <p> | |
| Do not issue an error message if the <name> is not a | |
| symbolic ref but a detached HEAD; instead exit with | |
| non-zero status silently. | |
| </p> | |
| </dd> | |
| <dt> | |
| -m | |
| </dt> | |
| <dd> | |
| <p> | |
| Update the reflog for <name> with <reason>. This is valid only | |
| when creating or updating a symbolic ref. | |
| </p> | |
| </dd> | |
| </dl> | |
| </div> | |
| <h2>NOTES</h2> | |
| <div class="sectionbody"> | |
| <p>In the past, <tt>.git/HEAD</tt> was a symbolic link pointing at | |
| <tt>refs/heads/master</tt>. When we wanted to switch to another branch, | |
| we did <tt>ln -sf refs/heads/newbranch .git/HEAD</tt>, and when we wanted | |
| to find out which branch we are on, we did <tt>readlink .git/HEAD</tt>. | |
| This was fine, and internally that is what still happens by | |
| default, but on platforms that do not have working symlinks, | |
| or that do not have the <tt>readlink(1)</tt> command, this was a bit | |
| cumbersome. On some platforms, <tt>ln -sf</tt> does not even work as | |
| advertised (horrors). Therefore symbolic links are now deprecated | |
| and symbolic refs are used by default.</p> | |
| <p>git-symbolic-ref will exit with status 0 if the contents of the | |
| symbolic ref were printed correctly, with status 1 if the requested | |
| name is not a symbolic ref, or 128 if another error occurs.</p> | |
| </div> | |
| <h2>Author</h2> | |
| <div class="sectionbody"> | |
| <p>Written by Junio C Hamano <junkio@cox.net></p> | |
| </div> | |
| <h2>GIT</h2> | |
| <div class="sectionbody"> | |
| <p>Part of the <a href="git.html">git(7)</a> suite</p> | |
| </div> | |
| <div id="footer"> | |
| <div id="footer-text"> | |
| Last updated 19-Jul-2007 02:09:57 UTC | |
| </div> | |
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