Shell options (set -e, set -x) in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to make the shell script stop on any error.

Linux CLI

set [1]

Drag options to blanks, or click blank then click option'

A-v

B-x

C-e

D-n

Attempts:

3 left

💡 Hint

Common Mistakes

Using -x instead of -e, which only shows commands but doesn't stop on error.

Using -v or -n which do not stop the script on errors.

The set -e option makes the shell stop running the script if any command fails.

2fill in blank

medium

Complete the code to print each command before executing it.

Linux CLI

set [1]

Drag options to blanks, or click blank then click option'

A-x

B-e

C-v

D-u

Attempts:

3 left

💡 Hint

Common Mistakes

Using -e which stops on errors but does not print commands.

Using -v which prints input lines but not expanded commands.

The set -x option prints each command before it runs, helping you see what the script does.

3fill in blank

hard

Fix the error in the script to stop on errors and print commands.

Linux CLI

set [1] [2]

Drag options to blanks, or click blank then click option'

A-x

B-e

C-v

D-n

Attempts:

3 left

💡 Hint

Common Mistakes

Using only one option and missing the other.

Using -v which prints input lines but not commands.

Use set -e -x to stop on errors and print commands before running them.

4fill in blank

hard

Fill both blanks to create a script that stops on errors and prints each command before executing it.

Linux CLI

#!/bin/bash
set [1] [2]
echo "Start script"
false
echo "This will not run"

Drag options to blanks, or click blank then click option'

A-e

B-x

C-v

D-n

Attempts:

3 left

💡 Hint

Common Mistakes

Using -v or -n which do not stop on errors or print commands as needed.

Reversing the order of options does not matter but missing one option breaks behavior.

set -e -x stops the script on errors and prints each command with details.

5fill in blank

hard

Fill all three blanks to create a script that stops on errors, prints commands, and treats unset variables as errors.

Linux CLI

#!/bin/bash
set [1] [2] [3]
echo "Running script"
echo "$UNSET_VAR"

Drag options to blanks, or click blank then click option'

A-e

B-x

C-u

D-v

Attempts:

3 left

💡 Hint

Common Mistakes

Missing the -u option so unset variables do not cause errors.

Using -v which prints input lines but is not needed here.

set -e -x -u stops on errors, prints commands, and treats unset variables as errors.