Linux CLI - Pipes and Redirection
Which of the following is the correct syntax to redirect only error messages to a file named
error.txt?Which of the following is the correct syntax to redirect only error messages to a file named error.txt?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Recognize correct redirection syntax
The correct syntax to redirect stderr is file descriptor 2 followed by > and the filename.Step 2: Validate options
command 2> error.txt uses correct syntax: command 2> error.txt. Options B and D have wrong order, C appends instead of overwrite.Final Answer:
command 2> error.txt -> Option BQuick Check:
Correct stderr syntax = A [OK]
Quick Trick: Use '2>' before filename to redirect errors [OK]
Common Mistakes:
- Placing '2' after '>' instead of before
- Using '>>' when overwrite is needed
- Mixing output and error redirection syntax
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