Linux Foundation Certified System Administrator (LFCS) — Question 128

Which of the following commands puts the output of the command date into the shell variable mydate?

Answer options

• A. mydate="$(date)"
• B. mydate="exec date"
• C. mydate="$((date))"
• D. mydate="date"
• E. mydate="${date}"

Correct answer: A

Explanation

The correct answer is A, as it correctly captures the output of the date command using command substitution. Option B incorrectly uses exec, which does not assign output to a variable. Option C attempts to use arithmetic expansion, which is not applicable here, while D and E simply assign the command name or an uninitialized variable, respectively, without capturing the command's output.