Linux CLI - Pipes and Redirection
Which command correctly appends error output to
errors.log without erasing existing content?Which command correctly appends error output to errors.log without erasing existing content?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Understand redirection operators
2>>appends stderr to a file,2>overwrites it.Step 2: Analyze options
python script.py 2>> errors.log uses2>>to append errors; B overwrites errors; C redirects stdout only; D appends stdout only.Final Answer:
python script.py 2>> errors.log -> Option BQuick Check:
Use 2>> to append errors, not overwrite. [OK]
Quick Trick: Use 2>> to append errors, not overwrite [OK]
Common Mistakes:
- Using 2> which overwrites the file
- Redirecting stdout instead of stderr
- Confusing > and 2> operators
Master "Pipes and Redirection" in Linux CLI
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