git for-each-ref [--count=<count>] [--shell|--perl|--python|--tcl]
                          [(--sort=<key>)...] [--format=<format>] [<pattern>...]
                          [--points-at <object>] [(--merged | --no-merged) [<object>]]
                          [--contains [<object>]]

       Iterate over all refs that match <pattern> and show them according to
       the given <format>, after sorting them according to the given set of
       <key>. If <count> is given, stop after showing that many refs. The
       interpolated values in <format> can optionally be quoted as string
       literals in the specified host language allowing their direct
       evaluation in that language.

           By default the command shows all refs that match <pattern>. This
           option makes it stop after showing that many refs.

           A field name to sort on. Prefix - to sort in descending order of
           the value. When unspecified, refname is used. You may use the
           --sort=<key> option multiple times, in which case the last key
           becomes the primary key.

           A string that interpolates %(fieldname) from the object pointed at
           by a ref being shown. If fieldname is prefixed with an asterisk (*)
           and the ref points at a tag object, the value for the field in the
           object tag refers is used. When unspecified, defaults to
           %(objectname) SPC %(objecttype) TAB %(refname). It also
           interpolates %% to %, and %xx where xx are hex digits interpolates
           to character with hex code xx; for example %00 interpolates to \0
           (NUL), %09 to \t (TAB) and %0a to \n (LF).

           If one or more patterns are given, only refs are shown that match
           against at least one pattern, either using fnmatch(3) or literally,
           in the latter case matching completely or from the beginning up to
           a slash.

       --shell, --perl, --python, --tcl
           If given, strings that substitute %(fieldname) placeholders are
           quoted as string literals suitable for the specified host language.
           This is meant to produce a scriptlet that can directly be `eval`ed.

       --points-at <object>
           Only list refs which points at the given object.

       --merged [<object>]
           Only list refs whose tips are reachable from the specified commit
           (HEAD if not specified).

       --no-merged [<object>]
           Only list refs whose tips are not reachable from the specified

           The name of the ref (the part after $GIT_DIR/). For a non-ambiguous
           short name of the ref append :short. The option
           core.warnAmbiguousRefs is used to select the strict abbreviation
           mode. If strip=<N> is appended, strips <N> slash-separated path
           components from the front of the refname (e.g., %(refname:strip=2)
           turns refs/tags/foo into foo.  <N> must be a positive integer. If a
           displayed ref has fewer components than <N>, the command aborts
           with an error.

           The type of the object (blob, tree, commit, tag).

           The size of the object (the same as git cat-file -s reports).

           The object name (aka SHA-1). For a non-ambiguous abbreviation of
           the object name append :short.

           The name of a local ref which can be considered "upstream" from the
           displayed ref. Respects :short in the same way as refname above.
           Additionally respects :track to show "[ahead N, behind M]" and
           :trackshort to show the terse version: ">" (ahead), "<" (behind),
           "<>" (ahead and behind), or "=" (in sync). Has no effect if the ref
           does not have tracking information associated with it.

           The name of a local ref which represents the @{push} location for
           the displayed ref. Respects :short, :track, and :trackshort options
           as upstream does. Produces an empty string if no @{push} ref is

           * if HEAD matches current ref (the checked out branch), ' '

           Change output color. Followed by :<colorname>, where names are
           described in color.branch.*.

           Left-, middle-, or right-align the content between %(align:...) and
           %(end). The "align:" is followed by <width> and <position> in any
           order separated by a comma, where the <position> is either left,
           right or middle, default being left and <width> is the total length
           of the content with alignment. If the contents length is more than
           the width then no alignment is performed. If used with --quote
           everything in between %(align:...) and %(end) is quoted, but if
           nested then only the topmost level performs quoting.

       In addition to the above, for commit and tag objects, the header field
       names (tree, parent, object, type, and tag) can be used to specify the
       line is contents:subject, where subject is the concatenation of all
       lines of the commit message up to the first blank line. The next line
       is contents:body, where body is all of the lines after the first blank
       line. The optional GPG signature is contents:signature. The first N
       lines of the message is obtained using contents:lines=N.

       For sorting purposes, fields with numeric values sort in numeric order
       (objectsize, authordate, committerdate, creatordate, taggerdate). All
       other fields are used to sort in their byte-value order.

       There is also an option to sort by versions, this can be done by using
       the fieldname version:refname or its alias v:refname.

       In any case, a field name that refers to a field inapplicable to the
       object referred by the ref does not cause an error. It returns an empty
       string instead.

       As a special case for the date-type fields, you may specify a format
       for the date by adding : followed by date format name (see the values
       the --date option to :git-rev-list(1) takes).

       An example directly producing formatted text. Show the most recent 3
       tagged commits:


           git for-each-ref --count=3 --sort='-*authordate' \
           --format='From: %(*authorname) %(*authoremail)
           Subject: %(*subject)
           Date: %(*authordate)
           Ref: %(*refname)

           ' 'refs/tags'

       A simple example showing the use of shell eval on the output,
       demonstrating the use of --shell. List the prefixes of all heads:


           git for-each-ref --shell --format="ref=%(refname)" refs/heads | \
           while read entry
                   eval "$entry"
                   echo `dirname $ref`

       A bit more elaborate report on tags, demonstrating that the format may
       be an entire script:


                   if test "z$t" = z
                           # could be a lightweight tag
                           kind="Lightweight tag"
                   echo "$kind $T points at a $t object $o"
                   if test "z$t" = zcommit
                           echo "The commit was authored by $n $e
           at $d, and titled


           Its message reads as:
                           echo "$b" | sed -e "s/^/    /"

           eval=`git for-each-ref --shell --format="$fmt" \
                   --sort='*objecttype' \
                   --sort=-taggerdate \
           eval "$eval"


       Part of the git(1) suite

Git 2.7.4                         12/09/2019               GIT-FOR-EACH-REF(1)
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