Shebang line (#!/bin/bash) in Bash Scripting - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to write the correct shebang line for a Bash script.

Bash Scripting

[1]

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

A#!/usr/bin/node

B#!/usr/bin/python

C#!/bin/sh

D#!/bin/bash

Attempts:

3 left

💡 Hint

Common Mistakes

Using a Python or Node.js shebang line in a Bash script.

Forgetting the '#!' at the start of the line.

The shebang line for Bash scripts is always '#!/bin/bash' to tell the system to use the Bash shell.

2fill in blank

medium

Complete the code to start a Bash script with the correct shebang line.

Bash Scripting

[1]
echo "Hello, world!"

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

A#!/bin/bash

B#!/usr/bin/python3

C#!/usr/bin/perl

D#!/bin/sh

Attempts:

3 left

💡 Hint

Common Mistakes

Using '#!/bin/sh' which may not support all Bash features.

Using a Python or Perl shebang line by mistake.

The correct shebang for Bash scripts is '#!/bin/bash'. This tells the system to run the script with Bash.

3fill in blank

hard

Fix the error in the shebang line to correctly run the script with Bash.

Bash Scripting

[1]
echo "Script is running"

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

A#!bin/bash

B#!/bin/bash

C#!/bin/bash script

D#!/bin/bash/

Attempts:

3 left

💡 Hint

Common Mistakes

Adding a trailing slash after '/bin/bash'.

Omitting the leading slash in the path.

Adding extra words after the interpreter path.

The shebang line must be exactly '#!/bin/bash' with no extra characters or spaces.

4fill in blank

hard

Fill both blanks to write a Bash script that starts with the correct shebang and prints a message.

Bash Scripting

[1]
echo [2]

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

A#!/bin/bash

B"Hello, Bash!"

C"Hello, world!"

D#!/usr/bin/python3

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong shebang line.

Forgetting to put the message in quotes.

The script must start with '#!/bin/bash' and use echo to print the message 'Hello, world!'.

5fill in blank

hard

Fill all three blanks to create a Bash script with the correct shebang, a variable assignment, and a print statement.

Bash Scripting

[1]
name=[2]
echo "Hello, [3]!"

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

A#!/bin/bash

B"Alice"

C$name

D#!/usr/bin/python3

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong shebang line.

Not quoting the string value.

Not using $ to reference the variable in echo.

The script starts with '#!/bin/bash', assigns the string 'Alice' to variable name, and prints 'Hello, Alice!' using the variable.