Using Linux Using Linux Text EditorsText EditorsUsing Linux Using Linux Text EditorsText Editors

• Use Non-Graphical Linux Text Editors

• Graphical Text Editor

• One of the reasons for this is the fact that the Registry stores data in many different formats.

• Some values accept regular text strings; other values require data to be entered in binary format.

Using the vi Editor• vi Modes• ■ Normal mode ■ Insert mode• ■ Command mode ■ Replace

mode

• Opening Files in vi• Ex: vi vidu1.txt

Working in Insert Mode• Switch to:• S• I• Insert

Command Mode Commands

■ exit Writes the current file and then closes vi.

■ wq Also writes the current file to disk and closes vi.

■ q Closes vi without saving the current file. This can only be used if the file

hasn’t been changed. If the file has been changed, then you must enter q!.

Entering Commands in vi Normal Mode

■ dw Deletes the word that comes immediately after the cursor, including the

space following the word. The text is saved in a memory buffer.

■ de Deletes the word that comes immediately after the cursor, not including

the space. The text is saved in a memory buffer.

Entering Commands in vi Normal Mode..

■ dd Deletes the entire current line. The text is saved in a memory buffer.

■ p Inserts the text deleted in the last deletion operation after the current cursor location

■ d$ Deletes from the insertion point to the end of the line. The text is saved in a memory buffer.

Entering Commands in vi Normal Mode..

■ u Undoes the last action.■ CTRL-G Displays a status line at the

bottom of the interface. This displays the name of the file, the total number of

lines in the file, and the current cursor location. This is shown in Figure 5-

15.■ /search_term Searches for the next

instance of the term specified.

Exercise 5.1Page: 234

Using the Emacs Using the Emacs EditorEditor

Using the Emacs Using the Emacs EditorEditor

• At the shell: emacs

Using Quick Emacs

• Alt W: copy• Ctrl Y: paste• Ctrl W, X: save

• Exercise 5.2• Page: 241

Use Graphical Text Editors

It work if:■ The system is working properly.■ The system has X Windows, a window

manager, and a desktop installed.■ Your X Window System has been

configured properly to work with your hardware.

Graphical Desktop Environments

•GNOME•KDE