Linux CLI - Viewing and Editing Files
A user runs
tail -n 5 file.txt but gets the entire file output instead of last 5 lines. What could be wrong?A user runs tail -n 5 file.txt but gets the entire file output instead of last 5 lines. What could be wrong?
medium📝 Debug Q7 of 15
Step-by-Step Solution
Solution:
Step 1: Understand tail behavior with small files
If the file has fewer lines than requested, tail outputs the entire file.Step 2: Check other options
Misspelling or empty file would cause errors or no output, not full file output.Final Answer:
The file has fewer than 5 lines -> Option BQuick Check:
tail outputs whole file if lines less than requested [OK]
Quick Trick: Tail outputs whole file if fewer lines than requested [OK]
Common Mistakes:
MISTAKES- Assuming tail always errors if file too short
- Confusing head and tail
- Ignoring file size
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