Building from source basics in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to configure the source before building.

Linux CLI

./configure [1]

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

A--prefix=/usr/local

B--make

C--install

D--build

Attempts:

3 left

💡 Hint

Common Mistakes

Using --make or --install with configure causes errors because these are not configure options.

Omitting --prefix may install software in default locations, which might require root permissions.

The --prefix option sets the installation directory before building.

2fill in blank

medium

Complete the command to compile the source code using make.

Linux CLI

make [1]

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

Ainstall

B-j4

Cclean

Dconfigure

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'install' with make compiles and installs, but here we want to speed up compilation only.

Using 'configure' with make is invalid; configure is a separate script.

The -j4 option tells make to use 4 parallel jobs to speed up compilation.

3fill in blank

hard

Fix the error in the command to clean build files.

Linux CLI

make [1]

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

Adelete

Bremove

Cclear

Dclean

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'remove', 'delete', or 'clear' are not standard make targets and cause errors.

The correct make target to remove build files is 'clean'.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps words to their lengths only if length is greater than 3.

Linux CLI

{word: [1] for word in words if [2]

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

Alen(word)

Blen(word) > 3

Cword.startswith('a')

Dword.upper()

Attempts:

3 left

💡 Hint

Common Mistakes

Using word.startswith('a') filters words starting with 'a', not length.

Using word.upper() as value does not give length.

We map each word to its length using len(word), and filter words with length greater than 3.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase keys to values only if value is positive.

Linux CLI

{ [1]: [2] for k, v in data.items() if [3] }

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

Ak.upper()

Bv

Cv > 0

Dk.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using k.lower() changes keys to lowercase, not uppercase.

Filtering with v < 0 would keep negative values, not positive.

We use k.upper() as keys, v as values, and filter where v > 0 to keep positive values.