Documentation with comments in Bash Scripting - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a comment in Bash script.

Bash Scripting

[1] This is a comment

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

A//

B<!--

C#

D/*

Attempts:

3 left

💡 Hint

Common Mistakes

Using // or /* for comments, which are used in other languages.

Forgetting to add the comment character at the start.

In Bash scripting, comments start with the # symbol.

2fill in blank

medium

Complete the code to add an inline comment after a command.

Bash Scripting

echo "Hello World" [1] This prints a greeting

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

A//

B#

C--

D/*

Attempts:

3 left

💡 Hint

Common Mistakes

Using // or -- which are not valid comment markers in Bash.

Placing the comment character before the command.

In Bash, inline comments start with # after the command.

3fill in blank

hard

Fix the error in the comment syntax to properly document the script.

Bash Scripting

echo "Start script" [1] This is a start message

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

A#

B//

C<!--

DREM

Attempts:

3 left

💡 Hint

Common Mistakes

Using comment styles from other languages like REM or .

Omitting the comment character entirely.

Bash uses # for comments; // and REM are invalid here.

4fill in blank

hard

Fill both blanks to add a multi-line comment using a common Bash workaround.

Bash Scripting

: [1] This is a multi-line comment
This text is ignored
[2]

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

A'

B#

C:

D"

Attempts:

3 left

💡 Hint

Common Mistakes

Using # for multi-line comments which only works for single lines.

Not quoting the text after the colon.

In Bash, multi-line comments can be simulated using a no-op command : followed by a quoted string.

5fill in blank

hard

Fill both blanks to document a function with comments.

Bash Scripting

function greet() {
  [1] "Hello, $1!"  [2] # Print greeting
}

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

A{

Becho

C#

D(

Attempts:

3 left

💡 Hint

Common Mistakes

Using parentheses instead of curly braces for function body.

Forgetting the comment character #.

Using print instead of echo.

Functions in Bash start with { and end with }, echo prints text, and # starts comments.