What is the primary purpose of adding comments to a shell script?

To document the code and improve readability for humans

To make the script compatible with multiple shells

To speed up script execution by skipping lines

To prevent the script from being executed by unauthorized users

A script that processes user input is failing intermittently. The administrator runs 'sh -x script.sh' and sees that a variable is empty when it should contain a value. The variable is assigned inside an if block. Which debugging technique is most likely to reveal the root cause?

Add 'set -u' to the script to catch unset variable usage

Remove all comments from the script to reduce clutter

Run the script with 'sh -n' to check for syntax errors

Change the shebang to #!/bin/csh to use a different shell

LPI BSD Specialist

Domain 5Objective 6

715.6 Customize or Write Simple Scripts (weight: 2) BSD-SPECIALIST Practice Questions (Page 2)

Part of the Topic 715: Basic Unix Skills domain, which makes up ~20% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–12 in this domain), expect 1–2 from this objective — we provide 23 practice questions to prepare you well beyond it. (estimate)

23questions here

5free pages

10concepts

Questions 6–10

6foundation · easy
Which loop construct in a shell script repeats a block of code as long as a condition is true?
Select an answer first
7foundation · easy
What is the primary purpose of adding comments to a shell script?
Select an answer first
8foundation · easy
A developer wants to write a script that uses arrays and advanced arithmetic features. Which shell would be the most appropriate choice?
Select an answer first
9expert · hard
A script that processes user input is failing intermittently. The administrator runs 'sh -x script.sh' and sees that a variable is empty when it should contain a value. The variable is assigned inside an if block. Which debugging technique is most likely to reveal the root cause?
Select an answer first
10foundation · easy
Which special parameter in a shell script contains the number of command-line arguments?
Select an answer first

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715.6 Customize or Write Simple Scripts (weight: 2) BSD-SPECIALIST Practice Questions (Page 2)

Questions 6–10

Which loop construct in a shell script repeats a block of code as long as a condition is true?

What is the primary purpose of adding comments to a shell script?

A developer wants to write a script that uses arrays and advanced arithmetic features. Which shell would be the most appropriate choice?

A script that processes user input is failing intermittently. The administrator runs 'sh -x script.sh' and sees that a variable is empty when it should contain a value. The variable is assigned inside an if block. Which debugging technique is most likely to reveal the root cause?

Which special parameter in a shell script contains the number of command-line arguments?

Keep studying — Topic 715: Basic Unix Skills