Background processes (&) in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to run the command sleep 10 in the background.

Linux CLI

sleep 10 [1]

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

A&

B&&

C|

D;

Attempts:

3 left

💡 Hint

Common Mistakes

Using '&&' runs the next command only if the first succeeds, not backgrounding.

Using '|' pipes output to another command, not backgrounding.

Using ';' runs commands sequentially, not in background.

Adding '&' at the end runs the command in the background, allowing the terminal to accept new commands immediately.

2fill in blank

medium

Complete the code to run ping google.com in the background.

Linux CLI

ping google.com [1]

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

A&&

B;

C|

D&

Attempts:

3 left

💡 Hint

Common Mistakes

Using '&&' runs the next command only if the first succeeds, not backgrounding.

Using '|' pipes output, not background.

Using ';' runs commands one after another, not background.

The '&' symbol runs the command in the background, freeing the terminal for other commands.

3fill in blank

hard

Fix the error in the command to run ls -l in the background.

Linux CLI

ls -l [1]

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

A&

B|

C&&

D;

Attempts:

3 left

💡 Hint

Common Mistakes

Using '&&' runs commands conditionally, not background.

Using '|' pipes output, not background.

Using ';' runs commands sequentially, not background.

The '&' symbol correctly runs the command in the background. Other symbols do not background the process.

4fill in blank

hard

Fill both blanks to run sleep 5 in the background and then list jobs.

Linux CLI

sleep 5 [1] [2] jobs

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

A&

B&&

C;

D|

Attempts:

3 left

💡 Hint

Common Mistakes

Using ';' runs commands sequentially but does not ensure sleep is backgrounded.

Using '|' pipes output, which is not needed here.

Use '&' to run sleep in background, then '&&' to run jobs only after sleep command is started.

5fill in blank

hard

Fill both blanks to run echo Hello in background, then run date only if echo succeeds, finally list jobs.

Linux CLI

echo Hello [1] date [2] jobs ;

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

A&

B&&

C;

D|

Attempts:

3 left

💡 Hint

Common Mistakes

Using '|' pipes output, which is not needed here.

Using ';' instead of '&&' loses conditional execution.

Use '&' to background echo, '&&' to run date only if echo succeeds, and ';' to run jobs after date.