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>(?:{backslash}{caret}\{\})?$" 77 and performs the following actions on each: 78 (1) strip "^{}" at the end of line if any; 79 (2) ignore if pattern is provided and does not head-match refname; 80 (3) warn if refname is not a well-formed refname and skip; 81 (4) ignore if refname is a ref that exists in the local repository; 82 (5) otherwise output the line. 83 84 85<pattern>...:: 86 87 Show references matching one or more patterns. Patterns are matched from 88 the end of the full name, and only complete parts are matched, e.g. 89 'master' matches 'refs/heads/master', 'refs/remotes/origin/master', 90 'refs/tags/jedi/master' but not 'refs/heads/mymaster' nor 91 'refs/remotes/master/jedi'. 92 93OUTPUT 94------ 95 96The output is in the format: '<SHA-1 ID>' '<space>' '<reference name>'. 97 98----------------------------------------------------------------------------- 99$ git show-ref --head --dereference 100832e76a9899f560a90ffd62ae2ce83bbeff58f54 HEAD 101832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/master 102832e76a9899f560a90ffd62ae2ce83bbeff58f54 refs/heads/origin 1033521017556c5de4159da4615a39fa4d5d2c279b5 refs/tags/v0.99.9c 1046ddc0964034342519a87fe013781abf31c6db6ad refs/tags/v0.99.9c^{} 105055e4ae3ae6eb344cbabf2a5256a49ea66040131 refs/tags/v1.0rc4 106423325a2d24638ddcc82ce47be5e40be550f4507 refs/tags/v1.0rc4^{} 107... 108----------------------------------------------------------------------------- 109 110When using --hash (and not --dereference) the output format is: '<SHA-1 ID>' 111 112----------------------------------------------------------------------------- 113$ git show-ref --heads --hash 1142e3ba0114a1f52b47df29743d6915d056be13278 115185008ae97960c8d551adcd9e23565194651b5d1 11603adf42c988195b50e1a1935ba5fcbc39b2b029b 117... 118----------------------------------------------------------------------------- 119 120EXAMPLE 121------- 122 123To show all references called "master", whether tags or heads or anything 124else, and regardless of how deep in the reference naming hierarchy they are, 125use: 126 127----------------------------------------------------------------------------- 128 git show-ref master 129----------------------------------------------------------------------------- 130 131This will show "refs/heads/master" but also "refs/remote/other-repo/master", 132if such references exists. 133 134When using the '--verify' flag, the command requires an exact path: 135 136----------------------------------------------------------------------------- 137 git show-ref --verify refs/heads/master 138----------------------------------------------------------------------------- 139 140will only match the exact branch called "master". 141 142If nothing matches, 'git show-ref' will return an error code of 1, 143and in the case of verification, it will show an error message. 144 145For scripting, you can ask it to be quiet with the "--quiet" flag, which 146allows you to do things like 147 148----------------------------------------------------------------------------- 149 git show-ref --quiet --verify -- "refs/heads/$headname" || 150 echo "$headname is not a valid branch" 151----------------------------------------------------------------------------- 152 153to check whether a particular branch exists or not (notice how we don't 154actually want to show any results, and we want to use the full refname for it 155in order to not trigger the problem with ambiguous partial matches). 156 157To show only tags, or only proper branch heads, use "--tags" and/or "--heads" 158respectively (using both means that it shows tags and heads, but not other 159random references under the refs/ subdirectory). 160 161To do automatic tag object dereferencing, use the "-d" or "--dereference" 162flag, so you can do 163 164----------------------------------------------------------------------------- 165 git show-ref --tags --dereference 166----------------------------------------------------------------------------- 167 168to get a listing of all tags together with what they dereference. 169 170FILES 171----- 172`.git/refs/*`, `.git/packed-refs` 173 174SEE ALSO 175-------- 176linkgit:git-ls-remote[1], 177linkgit:git-update-ref[1], 178linkgit:gitrepository-layout[5] 179 180GIT 181--- 182Part of the linkgit:git[1] suite