Array slicing in Bash Scripting - Mini Project: Build & Apply

Array slicing in Bash scripting

📖 Scenario: You are working on a script that processes a list of fruits. You want to extract a part of this list to use it separately.

🎯 Goal: Learn how to create an array, set a starting index and length, slice the array using these values, and print the sliced array.

📋 What You'll Learn

Create an array with exact fruit names

Create variables for start index and length

Slice the array using the start index and length

Print the sliced array elements separated by spaces

💡 Why This Matters

🌍 Real World

Slicing arrays is useful when you want to process or analyze only part of a list, like extracting recent log entries or selecting a subset of data.

💼 Career

Many automation and scripting tasks require handling lists of items. Knowing how to slice arrays helps you write efficient scripts for data processing, system monitoring, and more.

1

Create the fruits array

Create an array called fruits with these exact elements in order: apple, banana, cherry, date, elderberry

Bash Scripting

# Create the fruits array with the given elements
# Your code here

Need a hint?

Use parentheses and spaces to create the array: fruits=(apple banana cherry date elderberry)

2

Set start index and length variables

Create a variable called start and set it to 1. Create another variable called length and set it to 3.

Bash Scripting

fruits=(apple banana cherry date elderberry)
# Create start and length variables
# Your code here

Need a hint?

Use simple variable assignments like start=1 and length=3

3

Slice the fruits array

Create a new array called sliced_fruits that contains a slice of the fruits array starting at index start and containing length elements.

Bash Scripting

fruits=(apple banana cherry date elderberry)
start=1
length=3
# Slice the fruits array into sliced_fruits
# Your code here

Need a hint?

Use array slicing syntax: sliced_fruits=(${fruits[@]:start:length})

4

Print the sliced array

Print the elements of the sliced_fruits array separated by spaces using echo.

Bash Scripting

fruits=(apple banana cherry date elderberry)
start=1
length=3
sliced_fruits=(${fruits[@]:start:length})
# Print sliced_fruits elements
# Your code here

Need a hint?

Use echo ${sliced_fruits[@]} to print all elements separated by spaces.