In the vi editor, which command replaces text continuously from the current cursor position to the right, until you exit replace mode?

Introduction / Context:
Vi provides both single-character replacement and continuous replacement modes. Knowing the difference is important for efficient editing when making larger inline changes without deleting whole words or lines.

Given Data / Assumptions:

• User is editing text in vi normal mode.
• The goal is to overwrite multiple characters continuously.
• We must distinguish between lowercase r and uppercase R.

Concept / Approach:

The uppercase R enters replace mode, where every keystroke overwrites existing characters until you press ESC. Lowercase r replaces only one character. This makes R the correct choice for replacing text from the cursor onward.

Step-by-Step Solution:

Verification / Alternative check:

Compare with lowercase r: rX replaces one character with X only. With R, typing 'HELLO' overwrites five existing characters until stopped.

Why Other Options Are Wrong:

• S: changes entire line and enters insert mode.
• s: substitutes one character and enters insert mode for further input.
• r: replaces only a single character.
• None: incorrect because R is correct.

Common Pitfalls:

• Confusing R with r; lowercase affects one character only.
• Forgetting to press ESC to exit replace mode.

Final Answer:

R.