Provided by: git-man_2.17.1-1ubuntu0.18_all bug


       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>]


       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 reads refs from stdin,
       one ref per line, and shows those 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 or 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-for-each-ref(1), git-ls-remote(1), git-update-ref(1), gitrepository-layout(5)


       Part of the git(1) suite