The document provides an overview of the vi text editor, describing how to navigate and edit files, add and delete text, search for text, and save files. Vi has two modes - command mode for navigation and append/insert mode for adding text. It allows moving cursor, searching, deleting lines/characters, undoing changes, and quitting to save files. Advanced features include substituting text globally and marking blocks to move or copy.

1. Lesson 4-Mastering the Visual Editor

20. Navigating Through a File Moving the Cursor in vi

21. Navigating Through a File Moving to a Specific Textual Character in vi

22. Navigating Through a File Moving the Cursor by Line Address and Location Display

37. Moving and Copying Text Commands to Move and Copy Text

39. Moving and Copying Text The delete, change, and yank commands