Which of the Following Commands Will Reduce All Consecutive Spaces

question 220

Multiple Choice

Which of the following commands will reduce all consecutive spaces down to a single space?

• A) tr '\s' ' ' < a.txt > b.txt
• B) tr -c ' ' < a.txt > b.txt
• C) tr -d ' ' < a.txt > b.txt
• D) tr -r ' ' '\n' < a.txt > b.txt
• E) tr -s ' ' < a.txt > b.txt

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Definitions:

Microfilament

Cytoskeletal element composed of actin subunits; reinforces cell membranes; functions in movement and muscle contraction.

Muscle Contraction

The process by which muscle fibers produce force and tension through the sliding of actin and myosin filaments, powered by ATP.

Nuclear Envelope

The double membrane structure that surrounds the nucleus in eukaryotic cells, controlling the flow of substances in and out of the nucleus.

Lipid Bilayers

Thin polar membrane made of two layers of lipid molecules. These layers are fundamental in the structure of cell membranes, providing barriers and pathways for substances.