* Sorting:: Sorting lines, paragraphs or pages within Emacs.
* Narrowing:: Restricting display and editing to a portion
of the buffer.
-* Diff Mode:: Editing diff output.
* Two-Column:: Splitting apart columns to edit them
in side-by-side windows.
* Editing Binary Files::Using Hexl mode to edit binary files.
* Version Control:: Version control systems (RCS, CVS and SCCS).
* Directories:: Creating, deleting, and listing file directories.
* Comparing Files:: Finding where two files differ.
+* Diff Mode:: Editing diff output.
* Misc File Ops:: Other things you can do on files.
* Compressed Files:: Accessing compressed files.
* File Archives:: Operating on tar, zip, jar etc. archive files.