6 git-diff - Show changes between commits, commit and working tree, etc
11 'git-diff' [<common diff options>] <commit>{0,2} [--] [<path>...]
15 Show changes between two trees, a tree and the working tree, a
16 tree and the index file, or the index file and the working tree.
18 'git-diff' [--options] [--] [<path>...]::
20 This form is to view the changes you made relative to
21 the index (staging area for the next commit). In other
22 words, the differences are what you _could_ tell git to
23 further add to the index but you still haven't. You can
24 stage these changes by using gitlink:git-add[1].
26 If exactly two paths are given, and at least one is untracked,
27 compare the two files / directories. This behavior can be
30 'git-diff' [--options] --cached [<commit>] [--] [<path>...]::
32 This form is to view the changes you staged for the next
33 commit relative to the named <commit>. Typically you
34 would want comparison with the latest commit, so if you
35 do not give <commit>, it defaults to HEAD.
37 'git-diff' [--options] <commit> [--] [<path>...]::
39 This form is to view the changes you have in your
40 working tree relative to the named <commit>. You can
41 use HEAD to compare it with the latest commit, or a
42 branch name to compare with the tip of a different
45 'git-diff' [--options] <commit> <commit> [--] [<path>...]::
47 This is to view the changes between two arbitrary
50 'git-diff' [--options] <commit>..<commit> [--] [<path>...]::
52 This is synonymous to the previous form. If <commit> on
53 one side is omitted, it will have the same effect as
56 'git-diff' [--options] <commit>...<commit> [--] [<path>...]::
58 This form is to view the changes on the branch containing
59 and up to the second <commit>, starting at a common ancestor
60 of both <commit>. "git-diff A...B" is equivalent to
61 "git-diff $(git-merge-base A B) B". You can omit any one
62 of <commit>, which has the same effect as using HEAD instead.
64 Just in case if you are doing something exotic, it should be
65 noted that all of the <commit> in the above description can be
68 For a more complete list of ways to spell <commit>, see
69 "SPECIFYING REVISIONS" section in gitlink:git-rev-parse[1].
70 However, "diff" is about comparing two _endpoints_, not ranges,
71 and the range notations ("<commit>..<commit>" and
72 "<commit>...<commit>") do not mean a range as defined in the
73 "SPECIFYING RANGES" section in gitlink:git-rev-parse[1].
77 include::diff-options.txt[]
80 The <paths> parameters, when given, are used to limit
81 the diff to the named paths (you can give directory
82 names and get diff for all files under them).
88 Various ways to check your working tree::
92 $ git diff --cached <2>
96 <1> Changes in the working tree not yet staged for the next commit.
97 <2> Changes between the index and your last commit; what you
98 would be committing if you run "git commit" without "-a" option.
99 <3> Changes in the working tree since your last commit; what you
100 would be committing if you run "git commit -a"
102 Comparing with arbitrary commits::
106 $ git diff HEAD -- ./test <2>
107 $ git diff HEAD^ HEAD <3>
110 <1> Instead of using the tip of the current branch, compare with the
111 tip of "test" branch.
112 <2> Instead of comparing with the tip of "test" branch, compare with
113 the tip of the current branch, but limit the comparison to the
115 <3> Compare the version before the last commit and the last commit.
120 $ git diff topic master <1>
121 $ git diff topic..master <2>
122 $ git diff topic...master <3>
125 <1> Changes between the tips of the topic and the master branches.
127 <3> Changes that occured on the master branch since when the topic
128 branch was started off it.
130 Limiting the diff output::
133 $ git diff --diff-filter=MRC <1>
134 $ git diff --name-status <2>
135 $ git diff arch/i386 include/asm-i386 <3>
138 <1> Show only modification, rename and copy, but not addition
140 <2> Show only names and the nature of change, but not actual
142 <3> Limit diff output to named subtrees.
144 Munging the diff output::
147 $ git diff --find-copies-harder -B -C <1>
151 <1> Spend extra cycles to find renames, copies and complete
152 rewrites (very expensive).
153 <2> Output diff in reverse.
158 Written by Linus Torvalds <torvalds@osdl.org>
162 Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.
166 Part of the gitlink:git[7] suite