Linux CLI - Viewing and Editing Files
What will be the output of
tail -n +4 file.txt | head -n 2 if file.txt has 10 lines?What will be the output of tail -n +4 file.txt | head -n 2 if file.txt has 10 lines?
medium📝 Command Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand
This outputs the file starting from line 4 to the end (lines 4 to 10).tail -n +4 file.txtStep 2: Pipe to
This takes the first 2 lines from the previous output, which are lines 4 and 5 of the file.head -n 2Final Answer:
Lines 4 and 5 of file.txt -> Option AQuick Check:
tail -n +N starts at line N [OK]
Quick Trick: tail -n +N starts output from line N [OK]
Common Mistakes:
- Thinking tail -n +4 outputs last 4 lines
- Confusing line numbers
- Ignoring pipe effect
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