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Linux 2.6 - man page for git-show-ref (linux section 1)

GIT-SHOW-REF(1) 			    Git Manual				  GIT-SHOW-REF(1)

       git-show-ref - List references in a local repository

       git show-ref [-q|--quiet] [--verify] [--head] [-d|--dereference]
		    [-s|--hash[=<n>]] [--abbrev[=<n>]] [--tags]
		    [--heads] [--] [<pattern>...]
       git show-ref --exclude-existing[=<pattern>] < ref-list

       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.

       By default, shows the tags, heads, and remote refs.

       The --exclude-existing form is a filter that does the inverse, it shows the refs from
       stdin that don't exist in the local repository.

       Use of this utility is encouraged in favor of directly accessing files under the .git

	   Show the HEAD reference, even if it would normally be filtered out.

       --tags, --heads
	   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

       -d, --dereference
	   Dereference tags into object IDs as well. They will be shown with "^{}" appended.

       -s, --hash[=<n>]
	   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.

	   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 --quiet was not

	   Abbreviate the object name. When using --hash, you do not have to say --hash --abbrev;
	   --hash=n would do.

       -q, --quiet
	   Do not print any results to stdout. When combined with --verify this can be used to
	   silently check if a reference exists.

	   Make git show-ref act as a filter that reads refs from stdin of the form
	   "^(?:<anything>\s)?<refname>(?:\^{})?$" and performs the following actions on each:
	   (1) strip "^{}" 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.

	   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.  master matches
	   refs/heads/master, refs/remotes/origin/master, refs/tags/jedi/master but not
	   refs/heads/mymaster nor refs/remotes/master/jedi.

       The output is in the format: <SHA-1 ID> <space> <reference name>.

	   $ 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^{}

       When using --hash (and not --dereference) the output format is: <SHA-1 ID>

	   $ git show-ref --heads --hash

       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:

		   git show-ref master

       This will show "refs/heads/master" but also "refs/remote/other-repo/master", if such
       references exists.

       When using the --verify flag, the command requires an exact path:

		   git show-ref --verify refs/heads/master

       will only match the exact branch called "master".

       If nothing matches, git show-ref will return an error code of 1, and in the case of
       verification, it will show an error message.

       For scripting, you can ask it to be quiet with the "--quiet" flag, which allows you to do
       things like

		   git show-ref --quiet --verify -- "refs/heads/$headname" ||
			   echo "$headname is not a valid branch"

       to check whether a particular branch exists or not (notice how we don'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).

       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).

       To do automatic tag object dereferencing, use the "-d" or "--dereference" flag, so you can

		   git show-ref --tags --dereference

       to get a listing of all tags together with what they dereference.

       .git/refs/*, .git/packed-refs

       git-ls-remote(1), git-update-ref(1), gitrepository-layout(5)

       Part of the git(1) suite

Git				    01/14/2014				  GIT-SHOW-REF(1)

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