A team maintains a shared shell script. New team members often misunderstand the purpose of a complex awk command inside the script. Which action best improves the script's maintainability without changing its behavior?

Set the script's permissions to read-only for all users

Rename the script file to something more descriptive

Add a comment above the awk command explaining what it does and why

Remove the awk command and replace it with a simpler grep

A script must check whether a file exists and is readable. If it is readable, the script should process it. If not, it should print an error and exit with status 2. The script must also handle the case where the file does not exist. Which condition correctly distinguishes all three cases?

if [ -e "$file" ]; then process "$file" else echo "Error" exit 2 fi

if [ -s "$file" ]; then process "$file" else echo "Error" exit 2 fi

if [ -r "$file" ]; then process "$file" else echo "Error" exit 2 fi

if [ -f "$file" ]; then process "$file" else echo "Error" exit 2 fi

LPI BSD Specialist

Domain 5Objective 6

715.6 Customize or Write Simple Scripts (weight: 2) BSD-SPECIALIST Practice Questions (Page 1)

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 1–5

1application · easy
A team maintains a shared shell script. New team members often misunderstand the purpose of a complex awk command inside the script. Which action best improves the script's maintainability without changing its behavior?
Select an answer first
2foundation · easy
Which special parameter in a shell script contains the exit status of the last executed command?
Select an answer first
3expert · hard
A script must check whether a file exists and is readable. If it is readable, the script should process it. If not, it should print an error and exit with status 2. The script must also handle the case where the file does not exist. Which condition correctly distinguishes all three cases?
Select an answer first
4foundation · easy
Which shell construct is used to execute a block of code only if a condition is true?
Select an answer first
5foundation · easy
Which character begins a comment in a shell script?
Select an answer first

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715.6 Customize or Write Simple Scripts (weight: 2) BSD-SPECIALIST Practice Questions (Page 1)

Questions 1–5

A team maintains a shared shell script. New team members often misunderstand the purpose of a complex awk command inside the script. Which action best improves the script's maintainability without changing its behavior?

Which special parameter in a shell script contains the exit status of the last executed command?

A script must check whether a file exists and is readable. If it is readable, the script should process it. If not, it should print an error and exit with status 2. The script must also handle the case where the file does not exist. Which condition correctly distinguishes all three cases?

Which shell construct is used to execute a block of code only if a condition is true?

Which character begins a comment in a shell script?

Keep studying — Topic 715: Basic Unix Skills