Cloud & DevOps · Question 12 · Hard
What does this shell pipeline print? Ignore any leading spaces.
printf "b\na\nb\nc\na\nb\n" | sort | uniq -c | sort -rn | head -1- 2 a
- 3 b
- 1 c
- 3 a
Answer and explanation
Answer: B. 3 b
Explanation: sort groups identical lines, and uniq -c counts them: 2 a, 3 b, 1 c. sort -rn orders the counts in descending numeric order, and head -1 keeps the top line, "3 b".
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