introduction

The vi editor is a text editor that is commonly used in Unix-like operating systems, including Ubuntu. It's a powerful and versatile editor, but it can be a bit challenging to use if you're not familiar with its commands. Here are some of the essential commands you can use within the vi editor:

The vi editor is a text editor that is commonly used in Unix-like operating systems, including Ubuntu. It's a powerful and versatile editor, but it can be a bit challenging to use if you're not familiar with its commands. Here are some of the essential commands you can use within the vi editor:

1. Opening a File:

   • To open a file: vi filename

   • To create a new file: vi newfilename

Modes:

1. • Normal Mode: This is the default mode where you can navigate and perform various operations.

     • Insert Mode: This is where you can actually insert and edit text.

     • Command-Line Mode: This mode is used for executing various commands.

Switching Modes:

1. • From Normal to Insert mode: Press i (for insert) or a (for append).

     • From Insert to Normal mode: Press Esc.

Saving and Quitting:

1. • To save changes and stay in vi: Press Esc, then type :w.

     • To save changes and quit: Press Esc, then type :wq.

     • To quit without saving changes: Press Esc, then type :q!.

Basic Navigation (Normal Mode):

1. • Move cursor left: h

     • Move cursor right: l

     • Move cursor up: k

     • Move cursor down: j

1. Advanced Navigation (Normal

   • Mode):Move to beginning of line: 0 (zero)

• Move to end of line: $

• Move to beginning of file: gg

• Move to end of file: G

Editing (Normal Mode):

1. • Delete character: x

     • Delete current line: dd

     • Cut text: yy

     • Paste text: p

Search and Replace (Normal Mode):

1. • Search: /search_term

     • Search and replace: :%s/search_term/replace_term/g

Undo and Redo (Normal Mode):

1. • Undo: u

     • Redo: Ctrl + r

Copying and Pasting (Normal Mode):

1. • Copy: yy

     • Paste: p

Deleting and Inserting (Normal Mode):

1. • Delete word: dw

     • Delete to end of line: d$

     • Insert before cursor: i

     • Insert at beginning of line: I

     • Append after cursor: a

     • Append at end of line: A

Search and Navigate (Normal Mode):

1. • Search for a word under the cursor: * (forward), # (backward)

     • Move to next occurrence: n (forward), N (backward)

These are just some of the basic and common commands you can use in the vi editor. Remember that vi has a lot more functionality and commands. If you're planning to use it frequently, it's a good idea to learn more about its features and commands. You can access its built-in documentation by typing :help in command-line mode.

Referance:

https://youtube.com/playlist?list=PLg6orTBNhcmcSPQA0rbs_p1dSvLkw4J2q&si=DP_0eMy9372aOgPL