C-style for loop in Bash Scripting - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print numbers from 1 to 5 using a C-style for loop in bash.

Bash Scripting

for (( i=1; i<=5; i[1] )); do
  echo $i
done

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

A+

B++

C--

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using '--' which decreases the variable.

Using '+' or '*' which are not valid increment operators in this syntax.

The increment operator '++' increases the variable i by 1 each loop iteration.

2fill in blank

medium

Complete the code to print numbers from 10 down to 1 using a C-style for loop in bash.

Bash Scripting

for (( i=10; i[1]1; i-- )); do
  echo $i
done

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

A<

B<=

C>=

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' or '<=' which would not work for counting down.

Using '>' which would cause the loop to never run.

The loop continues while i is greater than or equal to 1.

3fill in blank

hard

Fix the error in the loop condition to print numbers from 0 to 4.

Bash Scripting

for (( i=0; i[1]5; i++ )); do
  echo $i
done

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

A<

B<=

C>

D>=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<=' causes the loop to print 5, which is not desired.

Using '>' or '>=' causes the loop to never run.

The loop should run while i is less than 5 to print 0 through 4.

4fill in blank

hard

Fill both blanks to create a loop that prints even numbers from 2 to 10.

Bash Scripting

for (( i=[1]; i[2]10; i+=2 )); do
  echo $i
done

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

A2

B1

C<=

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Starting at 1 prints odd numbers.

Using '<' excludes 10 from the output.

Start at 2 and continue while i is less than or equal to 10, incrementing by 2.

5fill in blank

hard

Fill all three blanks to create a loop that prints numbers from 5 down to 0.

Bash Scripting

for (( [1]=5; [2][3]0; [1]-- )); do
  echo $[1]
done

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

Ai

Bj

C>=

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names in initialization and condition.

Using '>' excludes 0 from the output.

Use variable i, loop while i is greater than or equal to 0, and decrement i each time.