Command-line arguments ($1, $2, ...) in Bash Scripting - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print the first command-line argument.

Bash Scripting

echo "First argument is: $[1]"

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

A$1

B$2

C$0

D$#

Attempts:

3 left

💡 Hint

Common Mistakes

Using $0 instead of $1 to get the first argument.

Using $# which gives the number of arguments, not the argument itself.

The first command-line argument is accessed using $1 in bash scripts.

2fill in blank

medium

Complete the code to print the second command-line argument.

Bash Scripting

echo "Second argument is: $[1]"

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

A$0

B$2

C$1

D$#

Attempts:

3 left

💡 Hint

Common Mistakes

Using $1 instead of $2 for the second argument.

Using $0 which is the script name.

The second command-line argument is accessed using $2 in bash scripts.

3fill in blank

hard

Fix the error in the code to print all arguments count.

Bash Scripting

echo "Number of arguments: $[1]"

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

A$1

B$*

C$0

D$#

Attempts:

3 left

💡 Hint

Common Mistakes

Using $1 which is the first argument, not the count.

Using $0 which is the script name.

The special variable $# holds the number of command-line arguments.

4fill in blank

hard

Fill both blanks to print the first and third arguments.

Bash Scripting

echo "First: $[1], Third: $[2]"

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

A$1

B$2

C$3

D$#

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up $2 and $3 for third argument.

Using $# which is argument count, not argument value.

Use $1 for the first argument and $3 for the third argument.

5fill in blank

hard

Fill all three blanks to print the script name, first argument, and total arguments count.

Bash Scripting

echo "Script: $[1], Arg1: $[2], Count: $[3]"

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

A$1

B$#

C$0

D$2

Attempts:

3 left

💡 Hint

Common Mistakes

Using $1 for script name instead of $0.

Using $2 instead of $1 for first argument.

Using $1 or $2 instead of $# for count.

Use $0 for script name, $1 for first argument, and $# for total arguments count.