[Solved] Given a file data.txt with the following content:apple banana Apple BANANA apple pie banana splitWhat is the output of the command grep -i 'apple' data.txt? | Linux CLI

Linux CLI - Text Processing

Given a file data.txt with the following content:

apple
banana
Apple
BANANA
apple pie
banana split

What is the output of the command grep -i 'apple' data.txt?

Aapple apple pie

BApple BANANA banana split

Capple pie banana split

Dapple Apple apple pie

Step-by-Step Solution

Solution:

Step 1: Understand -i option
The -i option makes grep case-insensitive, so it matches 'apple' and 'Apple'.
Step 2: Identify matching lines
Lines containing 'apple' ignoring case are: 'apple', 'Apple', and 'apple pie'.
Final Answer:
apple Apple apple pie -> Option D
Quick Check:
grep -i matches apple and Apple [OK]

Quick Trick: Use -i to ignore case when searching text [OK]

Common Mistakes:

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