Linux CLI - Viewing and Editing Files
You want to extract lines 10 to 15 from a large file
logfile.txt using only head and tail. Which command achieves this?You want to extract lines 10 to 15 from a large file logfile.txt using only head and tail. Which command achieves this?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Use tail to start from line 10
tail -n +10 logfile.txtoutputs from line 10 to end.Step 2: Use head to limit output to 6 lines (lines 10 to 15)
head -n 6takes first 6 lines from that output, lines 10 to 15.Final Answer:
tail -n +10 logfile.txt | head -n 6 -> Option DQuick Check:
Combine tail +N and head -n M for line ranges [OK]
Quick Trick: Use tail -n +start | head -n count for line ranges [OK]
Common Mistakes:
- Using wrong number of lines in head or tail
- Swapping head and tail order
- Using incorrect line counts
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