Which command correctly uses tee to append output to a file named log.txt?

easy📝 Conceptual Q2 of 15

Linux CLI - Pipes and Redirection

Which command correctly uses tee to append output to a file named log.txt?

Aecho "Hello" | tee -a log.txt

Becho "Hello" | tee log.txt

Cecho "Hello" > tee -a log.txt

Decho "Hello" | tee --overwrite log.txt

Step-by-Step Solution

Solution:

Step 1: Identify append option for tee
The -a flag tells tee to append to the file instead of overwriting.
Step 2: Check command syntax
echo "Hello" | tee -a log.txt uses tee -a log.txt, which appends output correctly.
Final Answer:
echo "Hello" | tee -a log.txt -> Option A
Quick Check:
Append flag for tee = -a [OK]

Quick Trick: Use -a with tee to append instead of overwrite [OK]

Common Mistakes:

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