Linux overview in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to show the command that lists files in a directory.

Intro to Computing

ls [1]

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

A-l

B-z

C-x

D-q

Attempts:

3 left

💡 Hint

Common Mistakes

Using options that do not exist or do not show detailed file info.

Forgetting the dash before the option letter.

The ls -l command lists files with detailed information like permissions, owner, size, and modification date.

2fill in blank

medium

Complete the command to change the current directory to the home directory.

Intro to Computing

cd [1]

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

A/var

B/root

C/etc

D~

Attempts:

3 left

💡 Hint

Common Mistakes

Using absolute paths that are not the home directory.

Confusing system directories with user directories.

The tilde ~ symbol represents the current user's home directory in Linux.

3fill in blank

hard

Fix the error in the command to display the current working directory.

Intro to Computing

[1]

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

Als

Bcd

Cpwd

Ddir

Attempts:

3 left

💡 Hint

Common Mistakes

Using cd which changes directory instead of showing it.

Using ls which lists files but does not show the current path.

The pwd command prints the current working directory path.

4fill in blank

hard

Fill both blanks to create a command that shows the first 10 lines of a file named 'log.txt'.

Intro to Computing

[1] [2] log.txt

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

Ahead

Btail

C-10

D-f

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'tail' which shows the end of the file.

Using '-f' which follows the file continuously.

The head -10 command shows the first 10 lines of a file. By default, head shows 10 lines.

5fill in blank

hard

Fill all three blanks to create a command that finds all '.txt' files in the current directory and its subdirectories.

Intro to Computing

[1] . [2] '*.txt' [3]

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

Afind

B-name

C-type f

D-exec

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-exec' which runs commands on found files but is not needed here.

Omitting '-type f' which may include directories.

The find command searches directories. The -name '*.txt' option filters files ending with '.txt'. The -type f option ensures only files (not directories) are found.