6 git-cat-file - Provide content or type and size information for repository objects
12 'git cat-file' (-t | -s | -e | -p | <type> | --textconv ) <object>
13 'git cat-file' (--batch | --batch-check) < <list-of-objects>
17 In its first form, the command provides the content or the type of an object in
18 the repository. The type is required unless '-t' or '-p' is used to find the
19 object type, or '-s' is used to find the object size, or '--textconv' is used
20 (which implies type "blob").
22 In the second form, a list of objects (separated by linefeeds) is provided on
23 stdin, and the SHA-1, type, and size of each object is printed on stdout.
28 The name of the object to show.
29 For a more complete list of ways to spell object names, see
30 the "SPECIFYING REVISIONS" section in linkgit:gitrevisions[7].
33 Instead of the content, show the object type identified by
37 Instead of the content, show the object size identified by
41 Suppress all output; instead exit with zero status if <object>
42 exists and is a valid object.
45 Pretty-print the contents of <object> based on its type.
48 Typically this matches the real type of <object> but asking
49 for a type that can trivially be dereferenced from the given
50 <object> is also permitted. An example is to ask for a
51 "tree" with <object> being a commit object that contains it,
52 or to ask for a "blob" with <object> being a tag object that
56 Show the content as transformed by a textconv filter. In this case,
57 <object> has be of the form <treeish>:<path>, or :<path> in order
58 to apply the filter to the content recorded in the index at <path>.
62 Print object information and contents for each object provided
63 on stdin. May not be combined with any other options or arguments.
64 See the section `BATCH OUTPUT` below for details.
67 --batch-check=<format>::
68 Print object information for each object provided on stdin. May
69 not be combined with any other options or arguments. See the
70 section `BATCH OUTPUT` below for details.
74 If '-t' is specified, one of the <type>.
76 If '-s' is specified, the size of the <object> in bytes.
78 If '-e' is specified, no output.
80 If '-p' is specified, the contents of <object> are pretty-printed.
82 If <type> is specified, the raw (though uncompressed) contents of the <object>
88 If `--batch` or `--batch-check` is given, `cat-file` will read objects
89 from stdin, one per line, and print information about them. By default,
90 the whole line is considered as an object, as if it were fed to
91 linkgit:git-rev-parse[1].
93 You can specify the information shown for each object by using a custom
94 `<format>`. The `<format>` is copied literally to stdout for each
95 object, with placeholders of the form `%(atom)` expanded, followed by a
96 newline. The available atoms are:
99 The 40-hex object name of the object.
102 The type of of the object (the same as `cat-file -t` reports).
105 The size, in bytes, of the object (the same as `cat-file -s`
109 The size, in bytes, that the object takes up on disk. See the
110 note about on-disk sizes in the `CAVEATS` section below.
113 If this atom is used in the output string, input lines are split
114 at the first whitespace boundary. All characters before that
115 whitespace are considered to be the object name; characters
116 after that first run of whitespace (i.e., the "rest" of the
117 line) are output in place of the `%(rest)` atom.
119 If no format is specified, the default format is `%(objectname)
120 %(objecttype) %(objectsize)`.
122 If `--batch` is specified, the object information is followed by the
123 object contents (consisting of `%(objectsize)` bytes), followed by a
126 For example, `--batch` without a custom format would produce:
129 <sha1> SP <type> SP <size> LF
133 Whereas `--batch-check='%(objectname) %(objecttype)'` would produce:
139 If a name is specified on stdin that cannot be resolved to an object in
140 the repository, then `cat-file` will ignore any custom format and print:
143 <object> SP missing LF
150 Note that the sizes of objects on disk are reported accurately, but care
151 should be taken in drawing conclusions about which refs or objects are
152 responsible for disk usage. The size of a packed non-delta object may be
153 much larger than the size of objects which delta against it, but the
154 choice of which object is the base and which is the delta is arbitrary
155 and is subject to change during a repack. Note also that multiple copies
156 of an object may be present in the object database; in this case, it is
157 undefined which copy's size will be reported.
162 Part of the linkgit:git[1] suite