Chapter 5

1. Chapter 5 Editing Text Files

2. Basic Concept • A text editor works on a file buffer that is a memory copy of a disk file • The disk file is not updated until we save the memory buffer • Common UNIX text editors • ed • pico • vi • emacs, ue, XEmacs, emacs21

3. Table 5.1 Common Functions of LINUX Text Editors • A text editor works on a file buffer that is a memory copy of a disk file • Usually the disk file is not updated until we save the memory buffer

4. Figure 5.1  First pico screen display

5. Figure 5.2  Saving a file with a name in pico

6. Table 5.2 Keystroke Commands and Their Actions in pico

7. Table 5.3 Important Cursor Movement Keystroke Commands in pico

8. Figure 5.3  Cut and pasted linespaced text in pico

9. Figure 5.4  LINUX vi screen with example script file

10. Figure 5.5  Operating modes of the vi text editor

11. Figure 5.6 The vi start-up screen

12. Table 5.4 Examples of vi Command Syntax

13. Table 5.5 Important Keys for the Insert Mode

14. Table 5.6 Important Commands for the Command Mode

15. Figure 5.7  Saved file firstvi

16. Figure 5.8  Final form of file firstvi

17. Table 5.7 Cursor movement and Keyboard Editing Commands

18. Table 5.8 Examples of the Syntax for the yank and put Commands

19. Table 5.9 Examples of the Syntax for the substitute Command

20. Table 5.10 Important Environment Options for vi

21. Figure 5.9  First emacs screen display

22. Table 5.11 Important emacs Commands

23. Table 5.12 Important emacs Cursor Movement and Editing Commands

24. Figure 5.10 The emacs display of the file alien

25. Figure 5.11  The file alien2 after the buffer contents have been saved

26. Table 5.13 Important Keyboard Macro Commands

27. Figure 5.12  The file datafile with 10 rows of data

28. Table 5.14 Important emacs Kill and Yank Commands

29. Table 5.15 Interactive Search and Replace Actions

30. Figure 5.13  The layout of the first XEmacs screen display

31. Figure 5.14  Initial display of datafile in XEmacs

32. Table 5.16 XEmacs Pull-Down Menu Choices Described

33. Table 5.17 XEmacs Toolbar Button Descriptions

34. Figure 5.15  File alien after being edited in XEmacs

35. Table 5.18 Important Readline Variables

36. Table 5.19 Commonly Used Bindable Readline Commands

37. Table 5.19 Commonly Used Bindable Readline Commands

38. Table 5.19 Commonly Used Bindable Readline Commands

39. Table 5.19 Commonly Used Bindable Readline Commands