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 401 </style>
 402 </head>
 403 <body>
 404 <div id="header">
 405 <h1>
 406 git-difftool(1) Manual Page
 407 </h1>
 408 <h2>NAME</h2>
 409 <div class="sectionbody">
 410 <p>git-difftool -
 411    Show changes using common diff tools
 412 </p>
 413 </div>
 414 </div>
 415 <h2 id="_synopsis">SYNOPSIS</h2>
 416 <div class="sectionbody">
 417 <div class="paragraph"><p><em>git difftool</em> [&lt;options&gt;] [&lt;commit&gt; [&lt;commit&gt;]] [--] [&lt;path&gt;&#8230;]</p></div>
 418 </div>
 419 <h2 id="_description">DESCRIPTION</h2>
 420 <div class="sectionbody">
 421 <div class="paragraph"><p><em>git difftool</em> is a git command that allows you to compare and edit files
 422 between revisions using common diff tools.  <em>git difftool</em> is a frontend
 423 to <em>git diff</em> and accepts the same options and arguments. See
 424 <a href="git-diff.html">git-diff(1)</a>.</p></div>
 425 </div>
 426 <h2 id="_options">OPTIONS</h2>
 427 <div class="sectionbody">
 428 <div class="dlist"><dl>
 429 <dt class="hdlist1">
 430 -y
 431 </dt>
 432 <dt class="hdlist1">
 433 --no-prompt
 434 </dt>
 435 <dd>
 436 <p>
 437         Do not prompt before launching a diff tool.
 438 </p>
 439 </dd>
 440 <dt class="hdlist1">
 441 --prompt
 442 </dt>
 443 <dd>
 444 <p>
 445         Prompt before each invocation of the diff tool.
 446         This is the default behaviour; the option is provided to
 447         override any configuration settings.
 448 </p>
 449 </dd>
 450 <dt class="hdlist1">
 451 -t &lt;tool&gt;
 452 </dt>
 453 <dt class="hdlist1">
 454 --tool=&lt;tool&gt;
 455 </dt>
 456 <dd>
 457 <p>
 458         Use the diff tool specified by &lt;tool&gt;.
 459         Valid merge tools are:
 460         araxis, bc3, diffuse, emerge, ecmerge, gvimdiff, kdiff3,
 461         kompare, meld, opendiff, p4merge, tkdiff, vimdiff and xxdiff.
 462 </p>
 463 <div class="paragraph"><p>If a diff tool is not specified, <em>git difftool</em>
 464 will use the configuration variable <tt>diff.tool</tt>.  If the
 465 configuration variable <tt>diff.tool</tt> is not set, <em>git difftool</em>
 466 will pick a suitable default.</p></div>
 467 <div class="paragraph"><p>You can explicitly provide a full path to the tool by setting the
 468 configuration variable <tt>difftool.&lt;tool&gt;.path</tt>. For example, you
 469 can configure the absolute path to kdiff3 by setting
 470 <tt>difftool.kdiff3.path</tt>. Otherwise, <em>git difftool</em> assumes the
 471 tool is available in PATH.</p></div>
 472 <div class="paragraph"><p>Instead of running one of the known diff tools,
 473 <em>git difftool</em> can be customized to run an alternative program
 474 by specifying the command line to invoke in a configuration
 475 variable <tt>difftool.&lt;tool&gt;.cmd</tt>.</p></div>
 476 <div class="paragraph"><p>When <em>git difftool</em> is invoked with this tool (either through the
 477 <tt>-t</tt> or <tt>--tool</tt> option or the <tt>diff.tool</tt> configuration variable)
 478 the configured command line will be invoked with the following
 479 variables available: <tt>$LOCAL</tt> is set to the name of the temporary
 480 file containing the contents of the diff pre-image and <tt>$REMOTE</tt>
 481 is set to the name of the temporary file containing the contents
 482 of the diff post-image.  <tt>$MERGED</tt> is the name of the file which is
 483 being compared. <tt>$BASE</tt> is provided for compatibility
 484 with custom merge tool commands and has the same value as <tt>$MERGED</tt>.</p></div>
 485 </dd>
 486 <dt class="hdlist1">
 487 -x &lt;command&gt;
 488 </dt>
 489 <dt class="hdlist1">
 490 --extcmd=&lt;command&gt;
 491 </dt>
 492 <dd>
 493 <p>
 494         Specify a custom command for viewing diffs.
 495         <em>git-difftool</em> ignores the configured defaults and runs
 496         <tt>$command $LOCAL $REMOTE</tt> when this option is specified.
 497         Additionally, <tt>$BASE</tt> is set in the environment.
 498 </p>
 499 </dd>
 500 <dt class="hdlist1">
 501 -g
 502 </dt>
 503 <dt class="hdlist1">
 504 --gui
 505 </dt>
 506 <dd>
 507 <p>
 508         When <em>git-difftool</em> is invoked with the <tt>-g</tt> or <tt>--gui</tt> option
 509         the default diff tool will be read from the configured
 510         <tt>diff.guitool</tt> variable instead of <tt>diff.tool</tt>.
 511 </p>
 512 </dd>
 513 </dl></div>
 514 <div class="paragraph"><p>See <a href="git-diff.html">git-diff(1)</a> for the full list of supported options.</p></div>
 515 </div>
 516 <h2 id="_config_variables">CONFIG VARIABLES</h2>
 517 <div class="sectionbody">
 518 <div class="paragraph"><p><em>git difftool</em> falls back to <em>git mergetool</em> config variables when the
 519 difftool equivalents have not been defined.</p></div>
 520 <div class="dlist"><dl>
 521 <dt class="hdlist1">
 522 diff.tool
 523 </dt>
 524 <dd>
 525 <p>
 526         The default diff tool to use.
 527 </p>
 528 </dd>
 529 <dt class="hdlist1">
 530 diff.guitool
 531 </dt>
 532 <dd>
 533 <p>
 534         The default diff tool to use when <tt>--gui</tt> is specified.
 535 </p>
 536 </dd>
 537 <dt class="hdlist1">
 538 difftool.&lt;tool&gt;.path
 539 </dt>
 540 <dd>
 541 <p>
 542         Override the path for the given tool.  This is useful in case
 543         your tool is not in the PATH.
 544 </p>
 545 </dd>
 546 <dt class="hdlist1">
 547 difftool.&lt;tool&gt;.cmd
 548 </dt>
 549 <dd>
 550 <p>
 551         Specify the command to invoke the specified diff tool.
 552 </p>
 553 <div class="paragraph"><p>See the <tt>--tool=&lt;tool&gt;</tt> option above for more details.</p></div>
 554 </dd>
 555 <dt class="hdlist1">
 556 difftool.prompt
 557 </dt>
 558 <dd>
 559 <p>
 560         Prompt before each invocation of the diff tool.
 561 </p>
 562 </dd>
 563 </dl></div>
 564 </div>
 565 <h2 id="_see_also">SEE ALSO</h2>
 566 <div class="sectionbody">
 567 <div class="dlist"><dl>
 568 <dt class="hdlist1">
 569 <a href="git-diff.html">git-diff(1)</a>
 570 </dt>
 571 <dd>
 572 <p>
 573          Show changes between commits, commit and working tree, etc
 574 </p>
 575 </dd>
 576 <dt class="hdlist1">
 577 <a href="git-mergetool.html">git-mergetool(1)</a>
 578 </dt>
 579 <dd>
 580 <p>
 581         Run merge conflict resolution tools to resolve merge conflicts
 582 </p>
 583 </dd>
 584 <dt class="hdlist1">
 585 <a href="git-config.html">git-config(1)</a>
 586 </dt>
 587 <dd>
 588 <p>
 589          Get and set repository or global options
 590 </p>
 591 </dd>
 592 </dl></div>
 593 </div>
 594 <h2 id="_git">GIT</h2>
 595 <div class="sectionbody">
 596 <div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
 597 </div>
 598 <div id="footer">
 599 <div id="footer-text">
 600 Last updated 2011-03-20 19:41:42 UTC
 601 </div>
 602 </div>
 603 </body>
 604 </html>