Write a shell script to check if the number entered at the command line is prime or not.

 Write a shell script to check if the number entered at the command line is prime or not.

CODE:

#!/bin/bash

# Function to check if a number is prime

is_prime() {

    num=$1

    if [ $num -lt 2 ]; then

        echo "$num is not prime."

        exit 1

    fi

    for ((i=2; i*i<=$num; i++)); do

        if [ $((num % i)) -eq 0 ]; then

            echo "$num is not prime."

            exit 1

        fi

    done

    echo "$num is prime."

}

# Check if a number is provided as a command-line argument

if [ $# -eq 0 ]; then

    echo "Usage: $0 <number>"

    exit 1

fi

# Get the number from the command line

number=$1

# Call the is_prime function with the provided number

is_prime $number

Save this script in a file, for example, check_prime.sh, and make it executable using the following command: