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

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

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

16       Displays references available in a local repository along with the
17       associated commit IDs. Results can be filtered using a pattern and tags
18       can be dereferenced into object IDs. Additionally, it can be used to
19       test whether a particular ref exists.
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21       By default, shows the tags, heads, and remote refs.
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23       The --exclude-existing form is a filter that does the inverse. It reads
24       refs from stdin, one ref per line, and shows those that don’t exist in
25       the local repository.
26
27       Use of this utility is encouraged in favor of directly accessing files
28       under the .git directory.
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OPTIONS

31       --head
32           Show the HEAD reference, even if it would normally be filtered out.
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34       --tags, --heads
35           Limit to "refs/heads" and "refs/tags", respectively. These options
36           are not mutually exclusive; when given both, references stored in
37           "refs/heads" and "refs/tags" are displayed.
38
39       -d, --dereference
40           Dereference tags into object IDs as well. They will be shown with
41           "^{}" appended.
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43       -s, --hash[=<n>]
44           Only show the SHA-1 hash, not the reference name. When combined
45           with --dereference the dereferenced tag will still be shown after
46           the SHA-1.
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48       --verify
49           Enable stricter reference checking by requiring an exact ref path.
50           Aside from returning an error code of 1, it will also print an
51           error message if --quiet was not specified.
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53       --abbrev[=<n>]
54           Abbreviate the object name. When using --hash, you do not have to
55           say --hash --abbrev; --hash=n would do.
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57       -q, --quiet
58           Do not print any results to stdout. When combined with --verify
59           this can be used to silently check if a reference exists.
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61       --exclude-existing[=<pattern>]
62           Make git show-ref act as a filter that reads refs from stdin of the
63           form "^(?:<anything>\s)?<refname>(?:\^{})?$" and performs the
64           following actions on each: (1) strip "^{}" at the end of line if
65           any; (2) ignore if pattern is provided and does not head-match
66           refname; (3) warn if refname is not a well-formed refname and skip;
67           (4) ignore if refname is a ref that exists in the local repository;
68           (5) otherwise output the line.
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70       <pattern>...
71           Show references matching one or more patterns. Patterns are matched
72           from the end of the full name, and only complete parts are matched,
73           e.g.  master matches refs/heads/master, refs/remotes/origin/master,
74           refs/tags/jedi/master but not refs/heads/mymaster or
75           refs/remotes/master/jedi.
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OUTPUT

78       The output is in the format: <SHA-1 ID> <space> <reference name>.
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80           $ git show-ref --head --dereference
81           832e76a9899f560a90ffd62ae2ce83bbeff58f54 HEAD
82           832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/master
83           832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/origin
84           3521017556c5de4159da4615a39fa4d5d2c279b5 refs/tags/v0.99.9c
85           6ddc0964034342519a87fe013781abf31c6db6ad refs/tags/v0.99.9c^{}
86           055e4ae3ae6eb344cbabf2a5256a49ea66040131 refs/tags/v1.0rc4
87           423325a2d24638ddcc82ce47be5e40be550f4507 refs/tags/v1.0rc4^{}
88           ...
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90
91       When using --hash (and not --dereference) the output format is: <SHA-1
92       ID>
93
94           $ git show-ref --heads --hash
95           2e3ba0114a1f52b47df29743d6915d056be13278
96           185008ae97960c8d551adcd9e23565194651b5d1
97           03adf42c988195b50e1a1935ba5fcbc39b2b029b
98           ...
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EXAMPLES

102       To show all references called "master", whether tags or heads or
103       anything else, and regardless of how deep in the reference naming
104       hierarchy they are, use:
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106                   git show-ref master
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108
109       This will show "refs/heads/master" but also
110       "refs/remote/other-repo/master", if such references exists.
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112       When using the --verify flag, the command requires an exact path:
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114                   git show-ref --verify refs/heads/master
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117       will only match the exact branch called "master".
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119       If nothing matches, git show-ref will return an error code of 1, and in
120       the case of verification, it will show an error message.
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122       For scripting, you can ask it to be quiet with the "--quiet" flag,
123       which allows you to do things like
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125                   git show-ref --quiet --verify -- "refs/heads/$headname" ||
126                           echo "$headname is not a valid branch"
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128
129       to check whether a particular branch exists or not (notice how we don’t
130       actually want to show any results, and we want to use the full refname
131       for it in order to not trigger the problem with ambiguous partial
132       matches).
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134       To show only tags, or only proper branch heads, use "--tags" and/or
135       "--heads" respectively (using both means that it shows tags and heads,
136       but not other random references under the refs/ subdirectory).
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138       To do automatic tag object dereferencing, use the "-d" or
139       "--dereference" flag, so you can do
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141                   git show-ref --tags --dereference
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144       to get a listing of all tags together with what they dereference.
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FILES

147       .git/refs/*, .git/packed-refs
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SEE ALSO

150       git-for-each-ref(1), git-ls-remote(1), git-update-ref(1),
151       gitrepository-layout(5)
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GIT

154       Part of the git(1) suite
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158Git 2.20.1                        12/15/2018                   GIT-SHOW-REF(1)
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