wc (word, line, character count) in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to count the number of lines in a file named 'file.txt'.

Linux CLI

wc [1] file.txt

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

A-w

B-l

C-c

D-m

Attempts:

3 left

💡 Hint

Common Mistakes

Using -w or -c instead of -l will count words or bytes, not lines.

The -l option tells wc to count lines in the file.

2fill in blank

medium

Complete the code to count the number of words in 'document.txt'.

Linux CLI

wc [1] document.txt

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

A-w

B-l

C-m

D-c

Attempts:

3 left

💡 Hint

Common Mistakes

Using -l counts lines, not words.

Using -c or -m counts bytes or characters.

The -w option counts the words in the file.

3fill in blank

hard

Fix the error in the command to count characters in 'notes.txt'.

Linux CLI

wc [1] notes.txt

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

A-w

B-l

C-m

D-c

Attempts:

3 left

💡 Hint

Common Mistakes

Using -c counts bytes, which can be different from characters.

The -m option counts characters (not bytes). Using -c counts bytes, which may differ if file has multibyte characters.

4fill in blank

hard

Fill both blanks to count lines and words in 'story.txt'.

Linux CLI

wc [1] [2] story.txt

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

A-l

B-w

C-c

D-m

Attempts:

3 left

💡 Hint

Common Mistakes

Using -c or -m instead of -w for word count.

Mixing up line and character options.

Use -l for lines and -w for words. Both options can be combined.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps each filename to its word count, only if the word count is greater than 100.

Linux CLI

result = [1]: [2] for [3] in files if [2] > 100}}

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

Afile

Bwc -w file

Dfilename

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong variable names.

Not filtering word counts correctly.

This comprehension maps each file to its word count using wc -w file, filtering counts greater than 100.