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Linux 2.6 - man page for git-difftool (linux section 1)

GIT-DIFFTOOL(1) 			    Git Manual				  GIT-DIFFTOOL(1)

NAME
       git-difftool - Show changes using common diff tools

SYNOPSIS
       git difftool [<options>] [<commit> [<commit>]] [--] [<path>...]

DESCRIPTION
       git difftool is a Git command that allows you to compare and edit files between revisions
       using common diff tools. git difftool is a frontend to git diff and accepts the same
       options and arguments. See git-diff(1).

OPTIONS
       -d, --dir-diff
	   Copy the modified files to a temporary location and perform a directory diff on them.
	   This mode never prompts before launching the diff tool.

       -y, --no-prompt
	   Do not prompt before launching a diff tool.

       --prompt
	   Prompt before each invocation of the diff tool. This is the default behaviour; the
	   option is provided to override any configuration settings.

       -t <tool>, --tool=<tool>
	   Use the diff tool specified by <tool>. Valid values include emerge, kompare, meld, and
	   vimdiff. Run git difftool --tool-help for the list of valid <tool> settings.

	   If a diff tool is not specified, git difftool will use the configuration variable
	   diff.tool. If the configuration variable diff.tool is not set, git difftool will pick
	   a suitable default.

	   You can explicitly provide a full path to the tool by setting the configuration
	   variable difftool.<tool>.path. For example, you can configure the absolute path to
	   kdiff3 by setting difftool.kdiff3.path. Otherwise, git difftool assumes the tool is
	   available in PATH.

	   Instead of running one of the known diff tools, git difftool can be customized to run
	   an alternative program by specifying the command line to invoke in a configuration
	   variable difftool.<tool>.cmd.

	   When git difftool is invoked with this tool (either through the -t or --tool option or
	   the diff.tool configuration variable) the configured command line will be invoked with
	   the following variables available: $LOCAL is set to the name of the temporary file
	   containing the contents of the diff pre-image and $REMOTE is set to the name of the
	   temporary file containing the contents of the diff post-image.  $MERGED is the name of
	   the file which is being compared.  $BASE is provided for compatibility with custom
	   merge tool commands and has the same value as $MERGED.

       --tool-help
	   Print a list of diff tools that may be used with --tool.

       --[no-]symlinks

	   git difftool's default behavior is create symlinks to the working tree when run in
	   --dir-diff mode and the right-hand side of the comparison yields the same content as
	   the file in the working tree.

	   Specifying --no-symlinks instructs git difftool to create copies instead.
	   --no-symlinks is the default on Windows.

       -x <command>, --extcmd=<command>
	   Specify a custom command for viewing diffs.	git-difftool ignores the configured
	   defaults and runs $command $LOCAL $REMOTE when this option is specified. Additionally,
	   $BASE is set in the environment.

       -g, --gui
	   When git-difftool is invoked with the -g or --gui option the default diff tool will be
	   read from the configured diff.guitool variable instead of diff.tool.

       See git-diff(1) for the full list of supported options.

CONFIG VARIABLES
       git difftool falls back to git mergetool config variables when the difftool equivalents
       have not been defined.

       diff.tool
	   The default diff tool to use.

       diff.guitool
	   The default diff tool to use when --gui is specified.

       difftool.<tool>.path
	   Override the path for the given tool. This is useful in case your tool is not in the
	   PATH.

       difftool.<tool>.cmd
	   Specify the command to invoke the specified diff tool.

	   See the --tool=<tool> option above for more details.

       difftool.prompt
	   Prompt before each invocation of the diff tool.

SEE ALSO
       git-diff(1)
	   Show changes between commits, commit and working tree, etc

       git-mergetool(1)
	   Run merge conflict resolution tools to resolve merge conflicts

       git-config(1)
	   Get and set repository or global options

GIT
       Part of the git(1) suite

Git 1.8.5.3				    01/14/2014				  GIT-DIFFTOOL(1)


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