Linux CLI - Text Processing
What is the output of
echo 'apple apple apple' | sed 's/apple/orange/2'?What is the output of echo 'apple apple apple' | sed 's/apple/orange/2'?
medium📝 Command Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the command input and substitution
The input string has three 'apple's. The command replaces the second occurrence only.Step 2: Apply substitution to the second 'apple'
The second 'apple' becomes 'orange', so output is 'apple orange apple'.Final Answer:
apple orange apple -> Option DQuick Check:
Second occurrence replaced = D [OK]
Quick Trick: Number after s/// targets specific occurrence [OK]
Common Mistakes:
- Replacing first instead of second occurrence
- Replacing all occurrences without 'g'
- Miscounting occurrences
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