You Can See the Contents of a Certain Variable in Memory

question 5

Multiple Choice

You can see the contents of a certain variable in memory by using the ____ metacharacter with the echo command.

• A) $
• B) *
• C) &
• D) #

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Definitions:

Oxygen

A chemical element (O) essential for most forms of life on earth, playing a key role in cellular respiration and energy production.

ATP

Adenosine triphosphate, a high-energy molecule that stores and transports chemical energy within cells for metabolism.

Energy Content

The amount of energy, typically measured in calories or joules, that is contained in a food or fuel source, indicating its potential to do work or produce heat.

Reactants

Substances initially present in a chemical reaction that are consumed during the reaction to make products.