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47.Advanced_Text_Editor_Usage.md

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47.Advanced_Text_Editor_Usage.md

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Copy and Paste Data

Copy (Yank)

  • yy : Copy the current line.
  • 3yy : Copy 3 lines.
  • yw : Copy the current word.
  • 3yw : Copy 3 words.
  • y$ : Copy from the cursor to the end of the line.
  • y^ : Copy from the beginning of the line to the cursor.

Paste

  • p : Paste below the cursor.
  • P : Paste above the cursor.

Cursor Navigation Commands

  • k : Move up.
  • j : Move down.
  • l : Move right.
  • h : Move left.
  • 3k : Move up 3 lines.
  • 3j : Move down 3 lines.

Special Navigation

  • $ : Move to the end of the current line.
  • ^ : Move to the beginning of the current line.
  • H : Move to the top of the screen.
  • M : Move to the middle of the screen.
  • L : Move to the bottom of the screen.
  • G : Move to the last line of the file.
  • :1 : Go to the first line.
  • :7 : Go to the 7th line.

Page Navigation

  • Ctrl+f : Move one page forward.
  • Ctrl+b : Move one page backward.

Word Navigation

  • b : Move back to the beginning of the current/previous word.
  • 3b : Move back 3 words.
  • w : Move forward to the beginning of the next word.
  • e : Move to the end of the current word.

Undo

  • u : Undo the last operation.

Save and Exit Commands

  • :w : Save the file.
  • :wq : Save and quit the editor.
  • :q : Quit the editor.
  • :q! : Force quit without saving changes.

Line Numbers

  • :set nu : Enable line numbers.
  • :set nonu : Disable line numbers.

Running Shell Commands

  • :!<unix_command> : Execute any shell command.
    • Example:
      • :!date : Displays the current date.
      • :!cal : Displays the calendar.

Example

To open a file and jump to a specific line:

vi +7 demo.txt

This opens demo.txt and positions the cursor on line 7.

Working with the Nano Editor

  • Nano is a command-line editor.
  • It can be used to create new files and edit the content of existing files.
  • It is almost like Notepad in functionality.

Various Options:

Command Function
Ctrl+G / F1 Display this help text.
Ctrl+X / F2 Close the current file buffer / Exit from nano.
Ctrl+O / F3 Write the current file to disk.
Ctrl+R / F5 Insert another file into the current one.
Ctrl+W / F6 Search forward for a string or a regular expression.
Ctrl+\ / M-R Replace a string or a regular expression.
Ctrl+K / F9 Cut the current line and store it in the cutbuffer.
Ctrl+U / F10 Uncut from the cutbuffer into the current line.

Most Important Commands:

  • Ctrl+O: Save the content to the file.
  • Ctrl+X: Quit the editor.