1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
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2 "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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3 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
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227 div#footer-badges { display: none; }
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229 include::./stylesheets/xhtml11-manpage.css[]
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230 /* Workarounds for IE6's broken and incomplete CSS2. */
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259 <title>git-symbolic-ref(1)</title>
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264 git-symbolic-ref(1) Manual Page
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267 <div class="sectionbody">
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268 <p>git-symbolic-ref -
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269 read and modify symbolic refs
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274 <div class="sectionbody">
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275 <p><em>git-symbolic-ref</em> <name> [<ref>]</p>
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277 <h2>DESCRIPTION</h2>
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278 <div class="sectionbody">
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279 <p>Given one argument, reads which branch head the given symbolic
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280 ref refers to and outputs its path, relative to the <tt>.git/</tt>
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281 directory. Typically you would give <tt>HEAD</tt> as the <name>
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282 argument to see on which branch your working tree is on.</p>
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283 <p>Give two arguments, create or update a symbolic ref <name> to
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284 point at the given branch <ref>.</p>
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285 <p>Traditionally, <tt>.git/HEAD</tt> is a symlink pointing at
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286 <tt>refs/heads/master</tt>. When we want to switch to another branch,
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287 we did <tt>ln -sf refs/heads/newbranch .git/HEAD</tt>, and when we want
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288 to find out which branch we are on, we did <tt>readlink .git/HEAD</tt>.
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289 This was fine, and internally that is what still happens by
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290 default, but on platforms that do not have working symlinks,
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291 or that do not have the <tt>readlink(1)</tt> command, this was a bit
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292 cumbersome. On some platforms, <tt>ln -sf</tt> does not even work as
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293 advertised (horrors).</p>
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294 <p>A symbolic ref can be a regular file that stores a string that
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295 begins with <tt>ref: refs/</tt>. For example, your <tt>.git/HEAD</tt> <strong>can</strong>
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296 be a regular file whose contents is <tt>ref: refs/heads/master</tt>.
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297 This can be used on a filesystem that does not support symbolic
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298 links. Instead of doing <tt>readlink .git/HEAD</tt>, <tt>git-symbolic-ref
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299 HEAD</tt> can be used to find out which branch we are on. To point
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300 the HEAD to <tt>newbranch</tt>, instead of <tt>ln -sf refs/heads/newbranch
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301 .git/HEAD</tt>, <tt>git-symbolic-ref HEAD refs/heads/newbranch</tt> can be
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303 <p>Currently, .git/HEAD uses a regular file symbolic ref on Cygwin,
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304 and everywhere else it is implemented as a symlink. This can be
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305 changed at compilation time.</p>
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308 <div class="sectionbody">
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309 <p>Written by Junio C Hamano <junkio@cox.net></p>
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312 <div class="sectionbody">
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313 <p>Part of the <a href="git.html">git(7)</a> suite</p>
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316 <div id="footer-text">
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317 Last updated 27-Dec-2005 00:16:48 PDT
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