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<title>git-diff(1)</title> | |
</head> | |
<body> | |
<div id="header"> | |
<h1> | |
git-diff(1) Manual Page | |
</h1> | |
<h2>NAME</h2> | |
<div class="sectionbody"> | |
<p>git-diff - | |
Show changes between commits, commit and working tree, etc | |
</p> | |
</div> | |
</div> | |
<h2>SYNOPSIS</h2> | |
<div class="sectionbody"> | |
<p><em>git-diff</em> [ --diff-options ] <commit>{0,2} [--] [<path>…]</p> | |
</div> | |
<h2>DESCRIPTION</h2> | |
<div class="sectionbody"> | |
<p>Show changes between two trees, a tree and the working tree, a | |
tree and the index file, or the index file and the working tree.</p> | |
<dl> | |
<dt> | |
<em>git-diff</em> [--options] [--] [<path>…] | |
</dt> | |
<dd> | |
<p> | |
This form is to view the changes you made relative to | |
the index (staging area for the next commit). In other | |
words, the differences are what you _could_ tell git to | |
further add to the index but you still haven't. You can | |
stage these changes by using <a href="git-add.html">git-add(1)</a>. | |
</p> | |
</dd> | |
<dt> | |
<em>git-diff</em> [--options] --cached [<commit>] [--] [<path>…] | |
</dt> | |
<dd> | |
<p> | |
This form is to view the changes you staged for the next | |
commit relative to the named <commit>. Typically you | |
would want comparison with the latest commit, so if you | |
do not give <commit>, it defaults to HEAD. | |
</p> | |
</dd> | |
<dt> | |
<em>git-diff</em> [--options] <commit> [--] [<path>…] | |
</dt> | |
<dd> | |
<p> | |
This form is to view the changes you have in your | |
working tree relative to the named <commit>. You can | |
use HEAD to compare it with the latest commit, or a | |
branch name to compare with the tip of a different | |
branch. | |
</p> | |
</dd> | |
<dt> | |
<em>git-diff</em> [--options] <commit> <commit> [--] [<path>…] | |
</dt> | |
<dd> | |
<p> | |
This form is to view the changes between two <commit>, | |
for example, tips of two branches. | |
</p> | |
</dd> | |
</dl> | |
<p>Just in case if you are doing something exotic, it should be | |
noted that all of the <commit> in the above description can be | |
any <tree-ish>.</p> | |
</div> | |
<h2>OPTIONS</h2> | |
<div class="sectionbody"> | |
<dl> | |
<dt> | |
-p | |
</dt> | |
<dd> | |
<p> | |
Generate patch (see section on generating patches) | |
</p> | |
</dd> | |
<dt> | |
-u | |
</dt> | |
<dd> | |
<p> | |
Synonym for "-p". | |
</p> | |
</dd> | |
<dt> | |
--raw | |
</dt> | |
<dd> | |
<p> | |
Generate the raw format. | |
</p> | |
</dd> | |
<dt> | |
--patch-with-raw | |
</dt> | |
<dd> | |
<p> | |
Synonym for "-p --raw". | |
</p> | |
</dd> | |
<dt> | |
--stat[=width[,name-width]] | |
</dt> | |
<dd> | |
<p> | |
Generate a diffstat. You can override the default | |
output width for 80-column terminal by "--stat=width". | |
The width of the filename part can be controlled by | |
giving another width to it separated by a comma. | |
</p> | |
</dd> | |
<dt> | |
--numstat | |
</dt> | |
<dd> | |
<p> | |
Similar to --stat, but shows number of added and | |
deleted lines in decimal notation and pathname without | |
abbreviation, to make it more machine friendly. For | |
binary files, outputs two <tt>-</tt> instead of saying | |
<tt>0 0</tt>. | |
</p> | |
</dd> | |
<dt> | |
--shortstat | |
</dt> | |
<dd> | |
<p> | |
Output only the last line of the --stat format containing total | |
number of modified files, as well as number of added and deleted | |
lines. | |
</p> | |
</dd> | |
<dt> | |
--summary | |
</dt> | |
<dd> | |
<p> | |
Output a condensed summary of extended header information | |
such as creations, renames and mode changes. | |
</p> | |
</dd> | |
<dt> | |
--patch-with-stat | |
</dt> | |
<dd> | |
<p> | |
Synonym for "-p --stat". | |
</p> | |
</dd> | |
<dt> | |
-z | |
</dt> | |
<dd> | |
<p> | |
\0 line termination on output | |
</p> | |
</dd> | |
<dt> | |
--name-only | |
</dt> | |
<dd> | |
<p> | |
Show only names of changed files. | |
</p> | |
</dd> | |
<dt> | |
--name-status | |
</dt> | |
<dd> | |
<p> | |
Show only names and status of changed files. | |
</p> | |
</dd> | |
<dt> | |
--color | |
</dt> | |
<dd> | |
<p> | |
Show colored diff. | |
</p> | |
</dd> | |
<dt> | |
--no-color | |
</dt> | |
<dd> | |
<p> | |
Turn off colored diff, even when the configuration file | |
gives the default to color output. | |
</p> | |
</dd> | |
<dt> | |
--color-words | |
</dt> | |
<dd> | |
<p> | |
Show colored word diff, i.e. color words which have changed. | |
</p> | |
</dd> | |
<dt> | |
--no-renames | |
</dt> | |
<dd> | |
<p> | |
Turn off rename detection, even when the configuration | |
file gives the default to do so. | |
</p> | |
</dd> | |
<dt> | |
--full-index | |
</dt> | |
<dd> | |
<p> | |
Instead of the first handful characters, show full | |
object name of pre- and post-image blob on the "index" | |
line when generating a patch format output. | |
</p> | |
</dd> | |
<dt> | |
--binary | |
</dt> | |
<dd> | |
<p> | |
In addition to --full-index, output "binary diff" that | |
can be applied with "git apply". | |
</p> | |
</dd> | |
<dt> | |
--abbrev[=<n>] | |
</dt> | |
<dd> | |
<p> | |
Instead of showing the full 40-byte hexadecimal object | |
name in diff-raw format output and diff-tree header | |
lines, show only handful hexdigits prefix. This is | |
independent of --full-index option above, which controls | |
the diff-patch output format. Non default number of | |
digits can be specified with --abbrev=<n>. | |
</p> | |
</dd> | |
<dt> | |
-B | |
</dt> | |
<dd> | |
<p> | |
Break complete rewrite changes into pairs of delete and create. | |
</p> | |
</dd> | |
<dt> | |
-M | |
</dt> | |
<dd> | |
<p> | |
Detect renames. | |
</p> | |
</dd> | |
<dt> | |
-C | |
</dt> | |
<dd> | |
<p> | |
Detect copies as well as renames. | |
</p> | |
</dd> | |
<dt> | |
--diff-filter=[ACDMRTUXB*] | |
</dt> | |
<dd> | |
<p> | |
Select only files that are Added (<tt>A</tt>), Copied (<tt>C</tt>), | |
Deleted (<tt>D</tt>), Modified (<tt>M</tt>), Renamed (<tt>R</tt>), have their | |
type (mode) changed (<tt>T</tt>), are Unmerged (<tt>U</tt>), are | |
Unknown (<tt>X</tt>), or have had their pairing Broken (<tt>B</tt>). | |
Any combination of the filter characters may be used. | |
When <tt>*</tt> (All-or-none) is added to the combination, all | |
paths are selected if there is any file that matches | |
other criteria in the comparison; if there is no file | |
that matches other criteria, nothing is selected. | |
</p> | |
</dd> | |
<dt> | |
--find-copies-harder | |
</dt> | |
<dd> | |
<p> | |
For performance reasons, by default, -C option finds copies only | |
if the original file of the copy was modified in the same | |
changeset. This flag makes the command | |
inspect unmodified files as candidates for the source of | |
copy. This is a very expensive operation for large | |
projects, so use it with caution. | |
</p> | |
</dd> | |
<dt> | |
-l<num> | |
</dt> | |
<dd> | |
<p> | |
-M and -C options require O(n^2) processing time where n | |
is the number of potential rename/copy targets. This | |
option prevents rename/copy detection from running if | |
the number of rename/copy targets exceeds the specified | |
number. | |
</p> | |
</dd> | |
<dt> | |
-S<string> | |
</dt> | |
<dd> | |
<p> | |
Look for differences that contain the change in <string>. | |
</p> | |
</dd> | |
<dt> | |
--pickaxe-all | |
</dt> | |
<dd> | |
<p> | |
When -S finds a change, show all the changes in that | |
changeset, not just the files that contain the change | |
in <string>. | |
</p> | |
</dd> | |
<dt> | |
--pickaxe-regex | |
</dt> | |
<dd> | |
<p> | |
Make the <string> not a plain string but an extended POSIX | |
regex to match. | |
</p> | |
</dd> | |
<dt> | |
-O<orderfile> | |
</dt> | |
<dd> | |
<p> | |
Output the patch in the order specified in the | |
<orderfile>, which has one shell glob pattern per line. | |
</p> | |
</dd> | |
<dt> | |
-R | |
</dt> | |
<dd> | |
<p> | |
Swap two inputs; that is, show differences from index or | |
on-disk file to tree contents. | |
</p> | |
</dd> | |
<dt> | |
--text | |
</dt> | |
<dd> | |
<p> | |
Treat all files as text. | |
</p> | |
</dd> | |
<dt> | |
-a | |
</dt> | |
<dd> | |
<p> | |
Shorthand for "--text". | |
</p> | |
</dd> | |
<dt> | |
--ignore-space-change | |
</dt> | |
<dd> | |
<p> | |
Ignore changes in amount of white space. This ignores white | |
space at line end, and consider all other sequences of one or | |
more white space characters to be equivalent. | |
</p> | |
</dd> | |
<dt> | |
-b | |
</dt> | |
<dd> | |
<p> | |
Shorthand for "--ignore-space-change". | |
</p> | |
</dd> | |
<dt> | |
--ignore-all-space | |
</dt> | |
<dd> | |
<p> | |
Ignore white space when comparing lines. This ignores | |
difference even if one line has white space where the other | |
line has none. | |
</p> | |
</dd> | |
<dt> | |
-w | |
</dt> | |
<dd> | |
<p> | |
Shorthand for "--ignore-all-space". | |
</p> | |
</dd> | |
</dl> | |
<p>For more detailed explanation on these common options, see also | |
<a href="diffcore.html">diffcore documentation</a>.</p> | |
<dl> | |
<dt> | |
<path>… | |
</dt> | |
<dd> | |
<p> | |
The <paths> parameters, when given, are used to limit | |
the diff to the named paths (you can give directory | |
names and get diff for all files under them). | |
</p> | |
</dd> | |
</dl> | |
</div> | |
<h2>EXAMPLES</h2> | |
<div class="sectionbody"> | |
<dl> | |
<dt> | |
Various ways to check your working tree | |
</dt> | |
<dd> | |
<div class="listingblock"> | |
<div class="content"> | |
<pre><tt>$ git diff <b>(1)</b> | |
$ git diff --cached <b>(2)</b> | |
$ git diff HEAD <b>(3)</b></tt></pre> | |
</div></div> | |
<ol> | |
<li> | |
<p> | |
changes in the working tree not yet staged for the next commit. | |
</p> | |
</li> | |
<li> | |
<p> | |
changes between the index and your last commit; what you | |
would be committing if you run "git commit" without "-a" option. | |
</p> | |
</li> | |
<li> | |
<p> | |
changes in the working tree since your last commit; what you | |
would be committing if you run "git commit -a" | |
</p> | |
</li> | |
</ol> | |
</dd> | |
<dt> | |
Comparing with arbitrary commits | |
</dt> | |
<dd> | |
<div class="listingblock"> | |
<div class="content"> | |
<pre><tt>$ git diff test <b>(1)</b> | |
$ git diff HEAD -- ./test <b>(2)</b> | |
$ git diff HEAD^ HEAD <b>(3)</b></tt></pre> | |
</div></div> | |
<ol> | |
<li> | |
<p> | |
instead of using the tip of the current branch, compare with the | |
tip of "test" branch. | |
</p> | |
</li> | |
<li> | |
<p> | |
instead of comparing with the tip of "test" branch, compare with | |
the tip of the current branch, but limit the comparison to the | |
file "test". | |
</p> | |
</li> | |
<li> | |
<p> | |
compare the version before the last commit and the last commit. | |
</p> | |
</li> | |
</ol> | |
</dd> | |
<dt> | |
Limiting the diff output | |
</dt> | |
<dd> | |
<div class="listingblock"> | |
<div class="content"> | |
<pre><tt>$ git diff --diff-filter=MRC <b>(1)</b> | |
$ git diff --name-status -r <b>(2)</b> | |
$ git diff arch/i386 include/asm-i386 <b>(3)</b></tt></pre> | |
</div></div> | |
<ol> | |
<li> | |
<p> | |
show only modification, rename and copy, but not addition | |
nor deletion. | |
</p> | |
</li> | |
<li> | |
<p> | |
show only names and the nature of change, but not actual | |
diff output. --name-status disables usual patch generation | |
which in turn also disables recursive behavior, so without -r | |
you would only see the directory name if there is a change in a | |
file in a subdirectory. | |
</p> | |
</li> | |
<li> | |
<p> | |
limit diff output to named subtrees. | |
</p> | |
</li> | |
</ol> | |
</dd> | |
<dt> | |
Munging the diff output | |
</dt> | |
<dd> | |
<div class="listingblock"> | |
<div class="content"> | |
<pre><tt>$ git diff --find-copies-harder -B -C <b>(1)</b> | |
$ git diff -R <b>(2)</b></tt></pre> | |
</div></div> | |
<ol> | |
<li> | |
<p> | |
spend extra cycles to find renames, copies and complete | |
rewrites (very expensive). | |
</p> | |
</li> | |
<li> | |
<p> | |
output diff in reverse. | |
</p> | |
</li> | |
</ol> | |
</dd> | |
</dl> | |
</div> | |
<h2>Author</h2> | |
<div class="sectionbody"> | |
<p>Written by Linus Torvalds <torvalds@osdl.org></p> | |
</div> | |
<h2>Documentation</h2> | |
<div class="sectionbody"> | |
<p>Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.</p> | |
</div> | |
<h2>GIT</h2> | |
<div class="sectionbody"> | |
<p>Part of the <a href="git.html">git(7)</a> suite</p> | |
</div> | |
<div id="footer"> | |
<div id="footer-text"> | |
Last updated 26-Dec-2006 09:11:34 UTC | |
</div> | |
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</body> | |
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