Calling functions in Bash Scripting - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to call the function named greet.

Bash Scripting

greet() {
  echo "Hello!"
}

[1]

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

Agreet()

Bcall greet

Crun greet

Dgreet

Attempts:

3 left

💡 Hint

Common Mistakes

Using parentheses when calling the function causes errors.

Trying to use 'call' or 'run' commands which don't exist in bash.

In bash, to call a function, just write its name without parentheses.

2fill in blank

medium

Complete the code to call the function say_hello with an argument.

Bash Scripting

say_hello() {
  echo "Hello, $1!"
}

[1]

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

Asay_hello(John)

Bsay_hello John

Csay_hello

Dcall say_hello John

Attempts:

3 left

💡 Hint

Common Mistakes

Using parentheses around arguments like in other languages.

Trying to use 'call' keyword which is not valid in bash.

To pass an argument to a bash function, write the function name followed by the argument separated by space.

3fill in blank

hard

Fix the error in calling the function print_date correctly.

Bash Scripting

print_date() {
  date
}

[1]

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

Aprint_date {}

Bprint_date()

Cprint_date

Dcall print_date

Attempts:

3 left

💡 Hint

Common Mistakes

Adding parentheses when calling the function.

Using 'call' keyword which is invalid in bash.

Calling a bash function requires only its name without parentheses or extra keywords.

4fill in blank

hard

Fill both blanks to call the function greet_user with the argument 'Alice'.

Bash Scripting

greet_user() {
  echo "Welcome, $1!"
}

[1] [2]

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

Agreet_user

BAlice

C'Alice'

Dgreet_user()

Attempts:

3 left

💡 Hint

Common Mistakes

Using parentheses when calling the function.

Adding quotes around the argument which are not needed.

Call the function by its name followed by the argument without quotes.

5fill in blank

hard

Fill all three blanks to call the function calculate_sum with two numbers and store the result.

Bash Scripting

calculate_sum() {
  echo $(($1 + $2))
}

result=$([1] [2] [3])

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

Acalculate_sum

B5

C7

Dcalculate_sum()

Attempts:

3 left

💡 Hint

Common Mistakes

Using parentheses in the function call.

Not separating the arguments with spaces.

Trying to call the function without command substitution.

Call the function by its name followed by two arguments separated by spaces inside the command substitution.