6 git-diff - Show changes between commits, commit and working tree, etc
12 'git diff' [<options>] [<commit>] [--] [<path>...]
13 'git diff' [<options>] --cached [<commit>] [--] [<path>...]
14 'git diff' [<options>] <commit> <commit> [--] [<path>...]
15 'git diff' [<options>] <blob> <blob>
16 'git diff' [<options>] --no-index [--] <path> <path>
20 Show changes between the working tree and the index or a tree, changes
21 between the index and a tree, changes between two trees, changes between
22 two blob objects, or changes between two files on disk.
24 'git diff' [<options>] [--] [<path>...]::
26 This form is to view the changes you made relative to
27 the index (staging area for the next commit). In other
28 words, the differences are what you _could_ tell Git to
29 further add to the index but you still haven't. You can
30 stage these changes by using linkgit:git-add[1].
32 'git diff' [<options>] --no-index [--] <path> <path>::
34 This form is to compare the given two paths on the
35 filesystem. You can omit the `--no-index` option when
36 running the command in a working tree controlled by Git and
37 at least one of the paths points outside the working tree,
38 or when running the command outside a working tree
41 'git diff' [<options>] --cached [<commit>] [--] [<path>...]::
43 This form is to view the changes you staged for the next
44 commit relative to the named <commit>. Typically you
45 would want comparison with the latest commit, so if you
46 do not give <commit>, it defaults to HEAD.
47 If HEAD does not exist (e.g. unborn branches) and
48 <commit> is not given, it shows all staged changes.
49 --staged is a synonym of --cached.
51 'git diff' [<options>] <commit> [--] [<path>...]::
53 This form is to view the changes you have in your
54 working tree relative to the named <commit>. You can
55 use HEAD to compare it with the latest commit, or a
56 branch name to compare with the tip of a different
59 'git diff' [<options>] <commit> <commit> [--] [<path>...]::
61 This is to view the changes between two arbitrary
64 'git diff' [<options>] <commit>..<commit> [--] [<path>...]::
66 This is synonymous to the previous form. If <commit> on
67 one side is omitted, it will have the same effect as
70 'git diff' [<options>] <commit>\...<commit> [--] [<path>...]::
72 This form is to view the changes on the branch containing
73 and up to the second <commit>, starting at a common ancestor
74 of both <commit>. "git diff A\...B" is equivalent to
75 "git diff $(git-merge-base A B) B". You can omit any one
76 of <commit>, which has the same effect as using HEAD instead.
78 Just in case if you are doing something exotic, it should be
79 noted that all of the <commit> in the above description, except
80 in the last two forms that use ".." notations, can be any
83 For a more complete list of ways to spell <commit>, see
84 "SPECIFYING REVISIONS" section in linkgit:gitrevisions[7].
85 However, "diff" is about comparing two _endpoints_, not ranges,
86 and the range notations ("<commit>..<commit>" and
87 "<commit>\...<commit>") do not mean a range as defined in the
88 "SPECIFYING RANGES" section in linkgit:gitrevisions[7].
90 'git diff' [<options>] <blob> <blob>::
92 This form is to view the differences between the raw
93 contents of two blob objects.
98 include::diff-options.txt[]
103 Compare the working tree with the "base" version (stage #1),
104 "our branch" (stage #2) or "their branch" (stage #3). The
105 index contains these stages only for unmerged entries i.e.
106 while resolving conflicts. See linkgit:git-read-tree[1]
107 section "3-Way Merge" for detailed information.
110 Omit diff output for unmerged entries and just show
111 "Unmerged". Can be used only when comparing the working tree
115 The <paths> parameters, when given, are used to limit
116 the diff to the named paths (you can give directory
117 names and get diff for all files under them).
120 include::diff-format.txt[]
125 Various ways to check your working tree::
129 $ git diff --cached <2>
133 <1> Changes in the working tree not yet staged for the next commit.
134 <2> Changes between the index and your last commit; what you
135 would be committing if you run "git commit" without "-a" option.
136 <3> Changes in the working tree since your last commit; what you
137 would be committing if you run "git commit -a"
139 Comparing with arbitrary commits::
143 $ git diff HEAD -- ./test <2>
144 $ git diff HEAD^ HEAD <3>
147 <1> Instead of using the tip of the current branch, compare with the
148 tip of "test" branch.
149 <2> Instead of comparing with the tip of "test" branch, compare with
150 the tip of the current branch, but limit the comparison to the
152 <3> Compare the version before the last commit and the last commit.
157 $ git diff topic master <1>
158 $ git diff topic..master <2>
159 $ git diff topic...master <3>
162 <1> Changes between the tips of the topic and the master branches.
164 <3> Changes that occurred on the master branch since when the topic
165 branch was started off it.
167 Limiting the diff output::
170 $ git diff --diff-filter=MRC <1>
171 $ git diff --name-status <2>
172 $ git diff arch/i386 include/asm-i386 <3>
175 <1> Show only modification, rename, and copy, but not addition
177 <2> Show only names and the nature of change, but not actual
179 <3> Limit diff output to named subtrees.
181 Munging the diff output::
184 $ git diff --find-copies-harder -B -C <1>
188 <1> Spend extra cycles to find renames, copies and complete
189 rewrites (very expensive).
190 <2> Output diff in reverse.
195 linkgit:git-difftool[1],
197 linkgit:gitdiffcore[7],
198 linkgit:git-format-patch[1],
203 Part of the linkgit:git[1] suite