Shell Script to print sum of all digits of a given number - The Coding Shala

Home >> Scripting >> Sum of all digits

Shell Script to print sum of all digits of a given number

Write a shell script to print the sum of all digits of a given number?

Code: 

#!/bin/bash
n=$1
sum=0
tmp=0
while [ $n -gt 0 ]
do
tmp=`expr $n % 10`
sum=`expr $sum + $tmp`
n=`expr $n / 10`
done
echo "sum of digits is $sum"



Other Posts You May Like
Please leave a comment below if you like this post or found some error, it will help me to improve my content.
By

Comments

Post a Comment

Popular Posts from this Blog

Java Program to Convert Decimal to Binary - The Coding Shala

Home >> Java Programs >> Convert Decimal to Binary  Hey there, welcome back to another post. In this post, we will learn how to convert decimal to binary in Java. Java Program to Convert Decimal to Binary You have given a decimal number. Write a Java program to convert decimal to binary. Example 1:  Input: 7 Output: 111 Input: 10 Output: 1010 Decimal to Binary Conversion using Array Approach To convert decimal to binary we can follow the below steps: Store the remainder in the array when we divide the number by 2. Divide the number by 2. Follow the above two steps until the number is above 0. Print the array in reverse order. For example:  4 % 2 = 0 => 4/2 = 2 2 % 2 = 0 => 2/2 = 1 1 % 2 = 1 => 1/2 = 0 Binary of 4 is: 100 Java Program:  import java.util.ArrayList; import java.util.List; import java.util.Scanner; /** * https://www.thecodingshala.com/ */ public class Main { public static void printBina...
Read more

Anti Diagonals - The Coding Shala

Image
Home >> Interview Questions >> Anti Diagonals Anti Diagonals Java Solution Give an N*N square matrix, return an array of its anti-diagonals. Look at the example for more details. Example: Input: 1 2 3 7 8 9 4 5 6 Return the following : [ [1], [2, 4], [3, 5, 7], [6, 8], [9] ] Input : 1 2 3 4 Return the following : [ [1], [2, 3], [4] ] Anti Diagonals Java Solution 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 public class Solution { public ArrayList < ArrayList < Integer >> diagonal ( ArrayList < ArrayList < Integer >> A ) { ArrayList < ArrayList < Integer >> ans = new ArrayList < ArrayList < Integer >>(); int N = A . size (); int i = N - 1 ; while ( i >= 0 ){ ArrayList < Integer > tmp = new ArrayList < Integer >(); ...
Read more

Java Program to Find GCD or HCF of Two Numbers - The Coding Shala

Home >> Java Programs >> Find GCD of Two Numbers  Hey there, welcome back to another post. In this post, we will learn how to find GCD or HCF of Two Numbers in Java. Java Program to Find GCD or HCF of Two Numbers The GCD (Greatest Common Divisor) or HCF (Highest Common Factor) of two numbers is the largest number that divides both of them. For example:  Number1: 6 (2 * 3) Number2: 9 (3 * 3) GCD or HCF of 6 and 9 is: 3 Find GCD of Two Numbers in Java using for Loop As we already know, GCD is the largest number that divides both numbers. We can start a for loop from 1 (because 1 divides all the numbers) to both numbers and if it divides both numbers then update GCD. Java Program:  import java.util.Scanner; /** * https://www.thecodingshala.com/ */ public class Main { public static void findGCD( int num1, int num2) { int gcd = 1; if (num1 == 0) { gcd = num2; } if (num2 == 0) { ...
Read more

Spiral Order Matrix II - The Coding Shala

Image
Home >> Interview Questions >> Spiral Order matrix 2 Spiral Order Matrix II Problem Solution Given an integer n, generate a square matrix filled with elements from 1 to n 2  in spiral order. Example: Given n = 3, You should return the following matrix: [ [ 1, 2, 3 ], [ 8, 9, 4 ], [ 7, 6, 5 ] ] Solution: (Java) The concept is the same as how to print the Spiral Order Matrix. Approach: Let's see for n= 4, then numbers will come from 1 to 16(n*n) in the matrix. As we need to insert numbers in spiral order so here we need 4 things to check, first and last column and top and bottom row. The following four steps we need to do: First, we need to insert numbers in the top row. Our loop will go from the left column to the right then will increase the top row by one and now the top is our second row. Now we are inserting the numbers in the right column, will start the loop from top to bottom, and then decrease the value of the right ...
Read more

Introduction to Kotlin Programming Language for Backend Development - The Coding Shala

Home >> Learn Kotlin >> Kotlin Introduction Are you looking for a powerful and reliable programming language for backend development? Look no further than Kotlin. Kotlin is a modern, statically typed programming language that has gained a lot of popularity in recent years. In this blog post, we'll take a look at what Kotlin is and why it's a great choice for backend development. What is Kotlin? Kotlin is a statically typed, cross-platform, general-purpose programming language that was developed by JetBrains in 2011. It is designed to be more concise, expressive, and safe than Java, the most widely used programming language for Android development. Kotlin can be compiled to run on the Java Virtual Machine (JVM), JavaScript, and native platforms, making it a versatile language for different types of applications. Why use Kotlin for backend development? Kotlin has several features that make it a suitable language for backend development, such as: Concisenes...
Read more