Shifting arguments (shift) in Bash Scripting - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to shift the first argument out of the list.

Bash Scripting

#!/bin/bash

# Shift the first argument
shift [1]

echo "$1"

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

A1

B2

C0

D-1

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'shift 0' does not shift any arguments.

Using a negative number like 'shift -1' causes an error.

Using 'shift 1' removes the first argument, so $1 becomes the second argument.

2fill in blank

medium

Complete the code to shift two arguments at once.

Bash Scripting

#!/bin/bash

# Shift two arguments
shift [1]

echo "$1"

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

A0

B1

C3

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'shift 1' only removes one argument.

Using 'shift 0' does not remove any arguments.

Using 'shift 2' removes the first two arguments, so $1 becomes the third argument.

3fill in blank

hard

Fix the error in the code to correctly shift one argument.

Bash Scripting

#!/bin/bash

# Incorrect shift usage
shift [1]

echo "$1"

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

A-1

Bone

C1

Dfirst

Attempts:

3 left

💡 Hint

Common Mistakes

Using words like 'one' or 'first' instead of numbers.

Using negative numbers like '-1'.

The 'shift' command requires a positive integer number, so '1' is correct.

4fill in blank

hard

Fill both blanks to shift arguments and print the new first argument.

Bash Scripting

#!/bin/bash

# Shift arguments
shift [1]
echo [2]

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

A2

B"$1"

C"$2"

D1

Attempts:

3 left

💡 Hint

Common Mistakes

Printing "$2" after shifting 2 arguments prints the wrong argument.

Using shift 1 but printing "$2" causes confusion.

Shifting by 2 removes first two arguments, so $1 is the new first argument to print.

5fill in blank

hard

Fill all three blanks to shift arguments and print the second argument after shifting.

Bash Scripting

#!/bin/bash

# Shift arguments
shift [1]
echo [2]
echo [3]

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

A1

B"$1"

C"$2"

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Using shift 1 but printing $2 and $3 instead of $1 and $2.

Printing $1 twice instead of $1 and $2.

Shifting by 2 removes first two arguments, so $1 and $2 are the new first and second arguments.