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>] < ref-list
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14

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.
20
21       The --exclude-existing form is a filter that does the inverse, it shows
22       the refs from stdin that don’t exist in the local repository.
23
24       Use of this utility is encouraged in favor of directly accessing files
25       under the .git directory.
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OPTIONS

28       --head
29           Show the HEAD reference.
30
31       --tags, --heads
32           Limit to only "refs/heads" and "refs/tags", respectively. These
33           options are not mutually exclusive; when given both, references
34           stored in "refs/heads" and "refs/tags" are displayed.
35
36       -d, --dereference
37           Dereference tags into object IDs as well. They will be shown with
38           "^{}" appended.
39
40       -s, --hash[=<n>]
41           Only show the SHA1 hash, not the reference name. When combined with
42           --dereference the dereferenced tag will still be shown after the
43           SHA1.
44
45       --verify
46           Enable stricter reference checking by requiring an exact ref path.
47           Aside from returning an error code of 1, it will also print an
48           error message if --quiet was not specified.
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50       --abbrev[=<n>]
51           Abbreviate the object name. When using --hash, you do not have to
52           say --hash --abbrev; --hash=n would do.
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54       -q, --quiet
55           Do not print any results to stdout. When combined with --verify
56           this can be used to silently check if a reference exists.
57
58       --exclude-existing[=<pattern>]
59           Make git show-ref act as a filter that reads refs from stdin of the
60           form "(?:<anything>\s)?<refname>(?:\{})?$" and performs the
61           following actions on each: (1) strip "^{}" at the end of line if
62           any; (2) ignore if pattern is provided and does not head-match
63           refname; (3) warn if refname is not a well-formed refname and skip;
64           (4) ignore if refname is a ref that exists in the local repository;
65           (5) otherwise output the line.
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67       <pattern>...
68           Show references matching one or more patterns.
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OUTPUT

71       The output is in the format: <SHA-1 ID> <space> <reference name>.
72
73           $ git show-ref --head --dereference
74           832e76a9899f560a90ffd62ae2ce83bbeff58f54 HEAD
75           832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/master
76           832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/origin
77           3521017556c5de4159da4615a39fa4d5d2c279b5 refs/tags/v0.99.9c
78           6ddc0964034342519a87fe013781abf31c6db6ad refs/tags/v0.99.9c^{}
79           055e4ae3ae6eb344cbabf2a5256a49ea66040131 refs/tags/v1.0rc4
80           423325a2d24638ddcc82ce47be5e40be550f4507 refs/tags/v1.0rc4^{}
81           ...
82
83
84       When using --hash (and not --dereference) the output format is: <SHA-1
85       ID>
86
87           $ git show-ref --heads --hash
88           2e3ba0114a1f52b47df29743d6915d056be13278
89           185008ae97960c8d551adcd9e23565194651b5d1
90           03adf42c988195b50e1a1935ba5fcbc39b2b029b
91           ...
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93

EXAMPLE

95       To show all references called "master", whether tags or heads or
96       anything else, and regardless of how deep in the reference naming
97       hierarchy they are, use:
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99                   git show-ref master
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101
102       This will show "refs/heads/master" but also
103       "refs/remote/other-repo/master", if such references exists.
104
105       When using the --verify flag, the command requires an exact path:
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107                   git show-ref --verify refs/heads/master
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109
110       will only match the exact branch called "master".
111
112       If nothing matches, git show-ref will return an error code of 1, and in
113       the case of verification, it will show an error message.
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115       For scripting, you can ask it to be quiet with the "--quiet" flag,
116       which allows you to do things like
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118                   git show-ref --quiet --verify -- "refs/heads/$headname" ||
119                           echo "$headname is not a valid branch"
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121
122       to check whether a particular branch exists or not (notice how we don’t
123       actually want to show any results, and we want to use the full refname
124       for it in order to not trigger the problem with ambiguous partial
125       matches).
126
127       To show only tags, or only proper branch heads, use "--tags" and/or
128       "--heads" respectively (using both means that it shows tags and heads,
129       but not other random references under the refs/ subdirectory).
130
131       To do automatic tag object dereferencing, use the "-d" or
132       "--dereference" flag, so you can do
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134                   git show-ref --tags --dereference
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136
137       to get a listing of all tags together with what they dereference.
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SEE ALSO

140       git-ls-remote(1)
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AUTHORS

143       Written by Linus Torvalds <torvalds@osdl.org[1]>. Man page by Jonas
144       Fonseca <fonseca@diku.dk[2]>.
145

GIT

147       Part of the git(1) suite
148

NOTES

150        1. torvalds@osdl.org
151           mailto:torvalds@osdl.org
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153        2. fonseca@diku.dk
154           mailto:fonseca@diku.dk
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158Git 1.7.1                         08/16/2017                   GIT-SHOW-REF(1)
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