Program 6 B.Sc Computer Science with Data analytics Linux and Shell Programming - Lab Bharathiar University - Write a Shell script to determine whether a given number is a prime number or not.

 

B.Sc Computer Science  with Data analytics

Linux and Shell Programming - Lab  

Bharathiar University 

Program 6- Write a Shell script to determine whether a given number is a prime number or not.

Source Code

# Function to check if a number is prime

is_prime() {

    if [ $1 -le 1 ]; then

        echo "$1 is not a prime number."

        exit 0

    fi

   

    d=2

    while [ $d -lt $1 ]; do

        if [ $(($1 % $d)) -eq 0 ]; then

            echo "$1 is not a prime number."

            exit 0

        fi

        d=$((d + 1))

    done

    echo "$1 is a prime number."

}

# Main program starts here

# Prompt the user to enter the number

    echo "Enter the number: "

    read number

   

# Check if the number is prime

is_prime $number

Sample output:

Program 5 B.Sc Computer Science with Data analytics Linux and Shell Programming - Lab Bharathiar University -Write a shell script (small calculator) that adds, subtracts, multiplies and divides the two given numbers.

 

B.Sc Computer Science  with Data analytics

Linux and Shell Programming - Lab  

Bharathiar University 

Program 5- -Write a shell script (small calculator) that adds, subtracts, multiplies and divides the two given numbers. 

Source Code

# Function to perform addition

addition() {

    echo "$num1 + $num2" | bc

}

# Function to perform subtraction

subtraction() {

    echo "$num1 - $num2" | bc

}

# Function to perform multiplication

multiplication() {

    echo "$num1 * $num2" | bc

}

# Function to perform division

division() {

    if [ "$num2" -eq 0 ]; then

        echo "Error: Division by zero!"

    else

        echo "scale=2; $num1 / $num2" | bc

    fi

}

# Main script starts here

# Prompt the user to enter the first number

echo "Enter the first number: "

    read num1

    # Prompt the user to enter the second number

    echo "Enter the second number: "

    read num2

       

while true; do

    # Prompt the user to select the operation

    echo "Select the operation:"

    echo "1. Addition"

    echo "2. Subtraction"

    echo "3. Multiplication"

    echo "4. Division"

    echo "5. Exit"

    echo "Enter your choice: "

    read choice

       

    case $choice in

        1) echo "Addition: $(addition)";;

        2) echo "Subtraction: $(subtraction)";;

        3) echo "Multiplication: $(multiplication)";;

        4) echo "Division: $(division)";;

        5) echo "Exiting..."; exit;;

        *) echo "Invalid choice";;

    esac

done

SAMPLE OUTPUT:

Program 1 BCA Madras University BCA Object Oriented Programming using C++ Practical Madras University Program 1 Write a class to represent a complex number which has member functions to do the following

 

BCA

Object Oriented Programming using C++ Practical

Madras University 

Program 1

Write a class to represent a complex number which has member functions to do the following a. Set and show the value of the complex number b. Add, subtract and multiply two complex numbers c. Multiplying the complex number with a scalar value 

SOURCE CODE:

#include<iostream.h>

#include<iomanip.h>

#include<conio.h>

class ComplexNumber {

private:

    double real;

    double imaginary;

public:

ComplexNumber() {

real = 0;

imaginary = 0;

    }

    void set_value(double realPart, double imaginaryPart) {

real = realPart;

imaginary = imaginaryPart;

    }

 void show_value() {

     if(imaginary<0)

cout << real << " - " << -imaginary << "i" << endl;

else

cout << real << " + " << imaginary << "i" << endl;

 }

    void add(ComplexNumber c2) {

double r = real + c2.real;

double i = imaginary + c2.imaginary;

cout<<"Sum of two Complex numbers:"<<endl;

result(r, i);

    }

    void subtract(ComplexNumber c2) {

double r = real - c2.real;

double i = imaginary - c2.imaginary;

cout<<"Difference of two Complex numbers:"<<endl;

result(r, i);

  }

    void multiply(ComplexNumber c2) {

double r = real * c2.real - imaginary * c2.imaginary;

double i = real * c2.imaginary + imaginary * c2.real;

cout<<"Multiplication of two Complex numbers:"<<endl;

result(r, i);

}

    void multiply_scalar(double scalar) {

double r = real * scalar;

double i = imaginary * scalar;

result(r, i);

}

    void result(double real, double imaginary) {

if(imaginary<0)

cout << real << " - " << -imaginary << "i" << endl;

else

cout << real << " + " << imaginary << "i" << endl;

    }

};

int main() {

    ComplexNumber c1,c2;

    double r1,r2,i1,i2,scalar;

    clrscr();

    cout<<"Enter the real and imaginary part of 1st complex number:";

    cin>>r1;

    cin>>i1;

    cout<<"Enter the real and imaginary part of 2nd complex number:";

    cin>>r2;

    cin>>i2;

    c1.set_value(r1,i1);

    c2.set_value(r2,i2);

    // Set and show value

    cout<<"Complex Numbers:"<<endl;

    c1.show_value();

    c2.show_value();

    // Add

    c1.add(c2);

    // Subtract

    c1.subtract(c2);

    // Multiply

    c1.multiply(c2);

    // Multiply with scalar

    cout<<"Enter scalar value to multiply with complex numbers: "<<endl;

    cin>>scalar;

    c1.multiply_scalar(scalar);

    c2.multiply_scalar(scalar);

     getch();

    return 0;

}

SAMPLE OUTPUT:

Program 4 B.Sc Computer Science with Data analytics Linux and Shell Programming - Lab Bharathiar University - Write a Shell script to sort number in ascending order

 

B.Sc Computer Science  with Data analytics

Linux and Shell Programming - Lab  

Bharathiar University 

Program 4- Write a Shell script to sort number in ascending order

Source Code

#!/bin/bash

# Prompt the user to enter numbers

echo "Enter numbers separated by spaces:"

read numbers

# Check if input is provided

if [ -z "$numbers" ]; then

   echo "No input provided."

    exit 1

fi

# Sort numbers in ascending order

sorted=$(echo "$numbers" | tr ' ' '\n' | sort -n)

# Print sorted numbers

echo "Sorted numbers in ascending order:"

echo "$sorted"

Sample Output:

Program 3 B.Sc Computer Science with Data analytics Linux and Shell Programming - Lab Bharathiar University - Write a Shell script that accepts a filename, starting and ending line numbers as arguments and displays all the lines between the given line numbers

 

B.Sc Computer Science  with Data analytics

Linux and Shell Programming - Lab  

Bharathiar University 

Program 3- Write a Shell script that accepts a filename, starting and ending line numbers as arguments and displays all the lines between the given line numbers

Source Code

if [ "$#" -ne 3 ]; then

echo "Please Enter <filename> <starting_line> <ending_line> as argument"

exit 1

fi

filename=$1

s=$2

e=$3

sed -n $s,$e\p $filename

Sample Output