Question: At the command prompt, type echo 'You have $ 4 . 5 0 ' and press Enter. What is displayed on the terminal screen? Did

At the command prompt, type echo 'You have $4.50' and press Enter. What is displayed on the terminal screen? Did the single quotation marks protect this metacharacter from shell interpretation?
10
At the command prompt, type echo "You have $4.50" and press Enter. What is displayed on the terminal screen? Did the double quotation marks protect this metacharacter from shell interpretation?
11
At the command prompt, type echo You have $4.50 and press Enter. What is displayed on the terminal screen? Did the backslash protect this metacharacter from shell interpretation?
12
At the command prompt, type echo My name is `whoami` and press Enter. What function do back quotes perform?

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