[git] сравнить версии файла

denis@laptop:~$ aptitude show git-gui qgit                                                                                    
Package: git-gui                                                                                                              
Uncompressed Size: 1,466k                                                                                                     
Depends: git-core (> 1:1.6.3.3), git-core (< 1:1.6.3.3-.), tk (>= 8.4)
Recommends: gitk
Suggests: git-doc
Replaces: git-core (< 1:1.5.2.2-3)
Description: fast, scalable, distributed revision control system (GUI)
 Git is popular version control system designed to handle very large projects with speed and efficiency; it is used for many
 high profile open source projects, most notably the Linux kernel.

 Git falls in the category of distributed source code management tools. Every Git working directory is a full-fledged
 repository with full revision tracking capabilities, not dependent on network access or a central server.

 This package provides the git graphical user interface.

Package: qgit
Uncompressed Size: 1,085k
Depends: libc6 (>= 2.2.5), libgcc1 (>= 1:4.1.1), libqtcore4 (>= 4.5.1), libqtgui4 (>= 4.5.1), libstdc++6 (>= 4.1.1), libx11-6,
         libxext6, git-core (>= 1.3.0)
Recommends: stgit
Description: Qt application for viewing GIT trees
 With qgit you will be able to browse revision tree, view patch content and changed files, graphically following different
 development branches. Main features:
 * View revisions, diffs, files history, files annotation, archive tree.
 * Commit changes visually cherry picking modified files.
 * Apply or format patch series from selected commits, drag and drop commits between two instances of qgit.
 * qgit implements a GUI for the most common StGIT commands like push/pop and apply/format patches. You can also create new
   patches or refresh current top one using the same semantics of git commit, i.e. cherry picking single modified files.