Uppercase and lowercase conversion in Bash Scripting - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to convert the variable 'text' to uppercase using parameter expansion.

Bash Scripting

echo "$[1]"

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

Atext^^

Btext,,

Ctext^

Dtext,,,

Attempts:

3 left

💡 Hint

Common Mistakes

Using single caret (^) converts only the first character.

Using double commas (,,) converts to lowercase instead.

Adding extra commas or carets causes syntax errors.

Using '${text^^}' converts all characters in 'text' to uppercase in bash parameter expansion.

2fill in blank

medium

Complete the code to convert the variable 'text' to lowercase using parameter expansion.

Bash Scripting

echo "$[1]"

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

Atext,,

Btext^^

Ctext^

Dtext,,,

Attempts:

3 left

💡 Hint

Common Mistakes

Using double carets (^^) converts to uppercase instead.

Using single caret (^) converts only the first character.

Adding extra commas causes syntax errors.

Using '${text,,}' converts all characters in 'text' to lowercase in bash parameter expansion.

3fill in blank

hard

Fix the error in the code to convert only the first character of 'text' to uppercase.

Bash Scripting

echo "$[1]"

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

Atext^^

Btext^

Ctext,

Dtext,,

Attempts:

3 left

💡 Hint

Common Mistakes

Using double carets (^^) converts all letters, not just the first.

Using double commas (,,) converts to lowercase.

Using a comma alone is invalid syntax.

Using '${text^}' converts only the first character of 'text' to uppercase in bash parameter expansion.

4fill in blank

hard

Fill both blanks to convert the variable 'word' to lowercase and then print it.

Bash Scripting

lowercase_word="$[1]"
echo "$[2]"

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

Aword,,

Bword^^

Clowercase_word

Dword

Attempts:

3 left

💡 Hint

Common Mistakes

Using uppercase conversion instead of lowercase.

Printing the original variable instead of the lowercase one.

Mixing variable names causing undefined variable errors.

First, '${word,,}' converts 'word' to lowercase and stores it in 'lowercase_word'. Then, 'echo ${lowercase_word}' prints it.

5fill in blank

hard

Fill all three blanks to create a script that reads input into 'input_text', converts it to uppercase, and prints it.

Bash Scripting

read -p "Enter text: " [1]
uppercase_text="$[2]"
echo "$[3]"

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

Ainput_text

Binput_text^^

Cuppercase_text

Dinput_text,,

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase conversion instead of uppercase.

Printing the original input variable instead of the uppercase one.

Forgetting to assign the read input to a variable.

The script reads user input into 'input_text', converts it to uppercase with '${input_text^^}', stores in 'uppercase_text', then prints it.