Variable assignment (no spaces around =) in Bash Scripting - Practice Problems & Coding Challenges

Challenge - 5 Problems

💻 Command Output

intermediate

What is the output of this Bash script?

Consider the following Bash script. What will it print when run?

Bash Scripting

VAR=Hello
echo "$VAR"

A echo $VAR

B VAR=Hello

C Hello

D Syntax error

💡 Hint

Remember, in Bash, variable assignment must not have spaces around the equals sign.

The variable VAR is assigned the value Hello without spaces around =. Then echo prints the value of VAR, which is Hello.

💻 Command Output

intermediate

What error does this Bash script produce?

What happens when you run this script? MYVAR = World echo "$MYVAR"

Bash Scripting

MYVAR = World
echo "$MYVAR"

A bash: MYVAR: command not found

B MYVAR = World

C World

D Syntax error

💡 Hint

Check if spaces around = are allowed in Bash variable assignment.

Bash treats 'MYVAR' as a command because of the spaces around =, so it tries to run a command named MYVAR and fails.

📝 Syntax

advanced

Which option correctly assigns a variable in Bash?

Choose the correct way to assign the value '42' to the variable NUMBER in Bash.

A NUMBER = 42

B NUMBER =42

C NUMBER= 42

D NUMBER=42

💡 Hint

No spaces are allowed around the equals sign in Bash variable assignment.

Only option D has no spaces around =, which is the correct syntax for Bash variable assignment.

🚀 Application

advanced

What is the value of VAR after running this script?

Given this script, what is the value of VAR printed? VAR=foo VAR=bar VAR=baz echo "$VAR"

Bash Scripting

VAR=foo
VAR=bar
VAR=baz
echo "$VAR"

A foo

B baz

C bar

D Syntax error

💡 Hint

The last assignment to a variable overwrites previous ones.

The variable VAR is assigned three times. The last assignment sets it to 'baz', which is printed.

🔧 Debug

expert

Why does this Bash script fail to assign the variable correctly?

Examine the script below and identify why the variable assignment does not work as expected. MYVAR=Hello World echo "$MYVAR"

Bash Scripting

MYVAR=Hello World
echo "$MYVAR"

A The variable is assigned only 'Hello', and 'World' is treated as a command causing an error.

B The variable MYVAR is assigned the full string 'Hello World' correctly.

C The script prints 'Hello World' without errors.

D The variable assignment syntax is correct and works as intended.

💡 Hint

In Bash, spaces in variable assignment need special handling.

Without quotes, Bash treats 'World' as a separate command, causing an error. To assign a string with spaces, quotes are needed.