In the vi editor, which command appends new text at the end of the current line?

Introduction / Context:
Text editing in vi involves switching between normal and insert modes. Knowing the difference between lowercase and uppercase commands allows faster editing. Appending specifically at the end of a line is a common task.

Given Data / Assumptions:

• You are using vi/Vim in normal mode.
• You want to add text at the end of the current line without manually moving with arrow keys.

Concept / Approach:

The uppercase command A moves the cursor to the end of the line and enters insert mode, ready for appending. This differs from lowercase a, which appends immediately after the cursor only.

Step-by-Step Solution:

Verification / Alternative check:

Compare A with lowercase a. Use A to quickly append to a line regardless of cursor position.

Why Other Options Are Wrong:

• I: inserts at beginning of line.
• i: inserts before cursor.
• a: appends after cursor, not end of line.
• None: incorrect because 'A' is correct.

Common Pitfalls:

• Confusing lowercase and uppercase commands in vi—they have different behaviors.
• Assuming a will always take you to end of line—it does not.

Final Answer:

A.