A script must count down from 10 to 1 and print each number. Which loop correctly implements this?

until [ $i -eq 0 ]; do echo $i; i=$((i-1)); done

while [ $i -gt 0 ]; do echo $i; i=$((i-1)); done

for i in {1..10}; do echo $i; done

for i in 10 9 8 7 6 5 4 3 2 1; do echo $i; done

LPI LPIC-1:Linux Administrator (101-500)

Domain 5Objective 2

105.2 Customize or Write Simple Scripts LPIC-1 Practice Questions (Page 3)

Part of the Topic 105: Shells and Shell Scripting domain, which makes up ~5% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~2–3 in this domain), expect 1–2 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

12concepts

12 Concepts in This Objective

Use standard shell syntax
Use shell built-in commands
Create and execute scripts
Handle command-line arguments
Use exit statuses
Use conditional constructs
Use looping constructs
Define and use functions
Use shell variables and quoting
Perform arithmetic operations
Use command substitution
Debug scripts

Questions 11–15

11foundation · easy
What is the exit status of a command that succeeds?
Select an answer first
12foundation · easy
Which quoting character prevents variable expansion and command substitution?
Select an answer first
13foundation · easy
How do you call a function named 'greet' in a shell script?
Select an answer first
14application · medium
A script must count down from 10 to 1 and print each number. Which loop correctly implements this?
Select an answer first
15application · medium
A script is failing intermittently. The administrator wants to trace each command as it executes and stop the script immediately if any command returns a non-zero exit status. Which set of shell options should be enabled at the top of the script?
Select an answer first

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105.2 Customize or Write Simple Scripts LPIC-1 Practice Questions (Page 3)

Questions 11–15

What is the exit status of a command that succeeds?

Which quoting character prevents variable expansion and command substitution?

How do you call a function named 'greet' in a shell script?

A script must count down from 10 to 1 and print each number. Which loop correctly implements this?

A script is failing intermittently. The administrator wants to trace each command as it executes and stop the script immediately if any command returns a non-zero exit status. Which set of shell options should be enabled at the top of the script?

Keep studying — Topic 105: Shells and Shell Scripting