1git-show-ref(1) 2=============== 3 4NAME 5---- 6git-show-ref - List references in a local repository 7 8SYNOPSIS 9-------- 10[verse] 11'git show-ref' [-q|--quiet] [--verify] [--head] [-d|--dereference] 12 [-s|--hash[=<n>]] [--abbrev[=<n>]] [--tags] 13 [--heads] [--] <pattern>... 14'git show-ref' --exclude-existing[=<pattern>] < ref-list 15 16DESCRIPTION 17----------- 18 19Displays references available in a local repository along with the associated 20commit IDs. Results can be filtered using a pattern and tags can be 21dereferenced into object IDs. Additionally, it can be used to test whether a 22particular ref exists. 23 24The --exclude-existing form is a filter that does the inverse, it shows the 25refs from stdin that don't exist in the local repository. 26 27Use of this utility is encouraged in favor of directly accessing files under 28the `.git` directory. 29 30OPTIONS 31------- 32 33--head:: 34 35 Show the HEAD reference. 36 37--tags:: 38--heads:: 39 40 Limit to only "refs/heads" and "refs/tags", respectively. These 41 options are not mutually exclusive; when given both, references stored 42 in "refs/heads" and "refs/tags" are displayed. 43 44-d:: 45--dereference:: 46 47 Dereference tags into object IDs as well. They will be shown with "^{}" 48 appended. 49 50-s:: 51--hash[=<n>]:: 52 53 Only show the SHA1 hash, not the reference name. When combined with 54 --dereference the dereferenced tag will still be shown after the SHA1. 55 56--verify:: 57 58 Enable stricter reference checking by requiring an exact ref path. 59 Aside from returning an error code of 1, it will also print an error 60 message if '--quiet' was not specified. 61 62--abbrev[=<n>]:: 63 64 Abbreviate the object name. When using `--hash`, you do 65 not have to say `--hash --abbrev`; `--hash=n` would do. 66 67-q:: 68--quiet:: 69 70 Do not print any results to stdout. When combined with '--verify' this 71 can be used to silently check if a reference exists. 72 73--exclude-existing[=<pattern>]:: 74 75 Make 'git show-ref' act as a filter that reads refs from stdin of the 76 form "^(?:<anything>\s)?<refname>(?:\^\{\})?$" and performs the 77 following actions on each: 78 (1) strip "^{}" at the end of line if any; 79 (2) ignore if pattern is provided and does not head-match refname; 80 (3) warn if refname is not a well-formed refname and skip; 81 (4) ignore if refname is a ref that exists in the local repository; 82 (5) otherwise output the line. 83 84 85<pattern>...:: 86 87 Show references matching one or more patterns. 88 89OUTPUT 90------ 91 92The output is in the format: '<SHA-1 ID>' '<space>' '<reference name>'. 93 94----------------------------------------------------------------------------- 95$ git show-ref --head --dereference 96832e76a9899f560a90ffd62ae2ce83bbeff58f54 HEAD 97832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/master 98832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/origin 993521017556c5de4159da4615a39fa4d5d2c279b5 refs/tags/v0.99.9c 1006ddc0964034342519a87fe013781abf31c6db6ad refs/tags/v0.99.9c^{} 101055e4ae3ae6eb344cbabf2a5256a49ea66040131 refs/tags/v1.0rc4 102423325a2d24638ddcc82ce47be5e40be550f4507 refs/tags/v1.0rc4^{} 103... 104----------------------------------------------------------------------------- 105 106When using --hash (and not --dereference) the output format is: '<SHA-1 ID>' 107 108----------------------------------------------------------------------------- 109$ git show-ref --heads --hash 1102e3ba0114a1f52b47df29743d6915d056be13278 111185008ae97960c8d551adcd9e23565194651b5d1 11203adf42c988195b50e1a1935ba5fcbc39b2b029b 113... 114----------------------------------------------------------------------------- 115 116EXAMPLE 117------- 118 119To show all references called "master", whether tags or heads or anything 120else, and regardless of how deep in the reference naming hierarchy they are, 121use: 122 123----------------------------------------------------------------------------- 124 git show-ref master 125----------------------------------------------------------------------------- 126 127This will show "refs/heads/master" but also "refs/remote/other-repo/master", 128if such references exists. 129 130When using the '--verify' flag, the command requires an exact path: 131 132----------------------------------------------------------------------------- 133 git show-ref --verify refs/heads/master 134----------------------------------------------------------------------------- 135 136will only match the exact branch called "master". 137 138If nothing matches, 'git show-ref' will return an error code of 1, 139and in the case of verification, it will show an error message. 140 141For scripting, you can ask it to be quiet with the "--quiet" flag, which 142allows you to do things like 143 144----------------------------------------------------------------------------- 145 git show-ref --quiet --verify -- "refs/heads/$headname" || 146 echo "$headname is not a valid branch" 147----------------------------------------------------------------------------- 148 149to check whether a particular branch exists or not (notice how we don't 150actually want to show any results, and we want to use the full refname for it 151in order to not trigger the problem with ambiguous partial matches). 152 153To show only tags, or only proper branch heads, use "--tags" and/or "--heads" 154respectively (using both means that it shows tags and heads, but not other 155random references under the refs/ subdirectory). 156 157To do automatic tag object dereferencing, use the "-d" or "--dereference" 158flag, so you can do 159 160----------------------------------------------------------------------------- 161 git show-ref --tags --dereference 162----------------------------------------------------------------------------- 163 164to get a listing of all tags together with what they dereference. 165 166SEE ALSO 167-------- 168linkgit:git-ls-remote[1] 169 170AUTHORS 171------- 172Written by Linus Torvalds <torvalds@osdl.org>. 173Man page by Jonas Fonseca <fonseca@diku.dk>. 174 175GIT 176--- 177Part of the linkgit:git[1] suite