Shell concept (Bash, Zsh) in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to list all files in the current directory.

Linux CLI

ls [1]

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

A-l

B-a

C-x

D-z

Attempts:

3 left

💡 Hint

Common Mistakes

Using options that do not list hidden files

Typing options without dash

The -a option shows all files, including hidden ones.

2fill in blank

medium

Complete the code to print the current working directory.

Linux CLI

[1]

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

Acd

Bls

Cpwd

Decho

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'ls' which lists files

Using 'cd' which changes directory

The pwd command prints the current directory path.

3fill in blank

hard

Fix the error in the command to create a new directory named 'projects'.

Linux CLI

mkdir [1]

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

Aprojects

Bproject

C-p

Dproject_dir

Attempts:

3 left

💡 Hint

Common Mistakes

Using singular form 'project'

Using option flags instead of directory name

The directory name should be exactly 'projects' to match the requirement.

4fill in blank

hard

Fill both blanks to create a file named 'notes.txt' and write 'Hello World' into it.

Linux CLI

[1] [2] 'Hello World'

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

Aecho

Bcat

C>

D>>

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'cat' which reads files

Using '>>' which appends instead of overwriting

echo outputs text, and > redirects it to create or overwrite a file.

5fill in blank

hard

Fill all three blanks to list all files, including hidden ones, in long format sorted by modification time.

Linux CLI

ls [1] [2] [3]

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

A-a

B-l

C-t

D-r

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-r' which reverses order

Missing the option to show hidden files

-a shows hidden files, -l shows details, and -t sorts by modification time.