What is the primary difference between a while loop and an until loop in Bash?

while is a built-in command; until is an external command.

while executes while the condition is true; until executes while the condition is false.

while executes at least once; until may never execute.

while is used for numeric conditions; until is used for file conditions.

CompTIALinux+

Domain 4Objective 2

Shell Scripting XK0-006 Practice Questions (Page 4)

Part of the Automation, Orchestration, and Scripting domain, which accounts for 17% of the XK0-006 exam. CompTIA does not publish an official question count, but from its 90-minute exam (~35–60 total, ~6–10 in this domain), expect 1–2 from this objective — we provide 18 practice questions to prepare you well beyond it. (estimate)

18questions here

4free pages

10concepts

17%of the exam

Questions 16–18

16foundation · easy
What is the output of the following Bash script? ```bash case "apple" in apple) echo "Fruit";; carrot) echo "Vegetable";; *) echo "Unknown";; esac ```
Select an answer first
17foundation · easy
What is the primary difference between a while loop and an until loop in Bash?
Select an answer first
18foundation · easy
Which Bash option enables verbose mode, printing each command as it is read?
Select an answer first

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Shell Scripting XK0-006 Practice Questions (Page 4)

Questions 16–18

What is the output of the following Bash script? ```bash case "apple" in apple) echo "Fruit";; carrot) echo "Vegetable";; *) echo "Unknown";; esac ```

What is the primary difference between a while loop and an until loop in Bash?

Which Bash option enables verbose mode, printing each command as it is read?

Keep studying — Automation, Orchestration, and Scripting