#!/bin/bash

# SCRIPT: armstrongnumber.sh

# USAGE: armstrongnumber.sh

# PURPOSE: Check if the given number is Armstrong number ?

# \\\\ ////

# \\ - - //

# @ @

# ---oOOo-( )-oOOo---

# Armstrong numbers are the sum of their own digits to the power of

# the number of digits. As that is a slightly brief wording, let me

# give an example:

# 153 = 1³ + 5³ + 3³

# Each digit is raised to the power three because 153 has three

# digits. They are totalled and we get the original number again!

#Notice that Armstrong numbers are base dependent,but we'll mainly be

# dealing with base 10 examples.The Armstrong numbers up to 5 digits

# are 1 to 9,153, 370, 371, 407, 1634, 8208, 9474, 54748, 92727,93084

#

#####################################################################

# Script Starts Here #

#####################################################################

echo -n "Enter the number: "

read Number

Length=${#Number}

Sum=0

OldNumber=$Number

while [ $Number -ne 0 ]

do

Rem=$((Number%10))

Number=$((Number/10))

Power=$(echo "$Rem ^ $Length" | bc )

Sum=$((Sum+$Power))

done

if [ $Sum -eq $OldNumber ]

then

echo "$OldNumber is an Armstrong number"

else

echo "$OldNumber is not an Armstrong number"

fi

**OUTPUT:**

# sh armstrongnumber.sh

Enter the number: 8208

8208 is an Armstrong number

# sh armstrongnumber.sh

Enter the number: 4210818

4210818 is an Armstrong number

# sh armstrongnumber.sh

Enter the number: 4376541

4376541 is not an Armstrong number

## Monday, December 20, 2010

Posted by venu k

17 comments | 12:00 PM

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output error!!!!!!

ReplyDeleteGiven me error details. It's working fine for me.

ReplyDeletethnk q! :)

ReplyDeletewhats the use of #

ReplyDeleteits use for special type of length of a string in shell scripts

Deletethank q

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ReplyDeleteif u dont know the use of # . F##k u then.

ReplyDeleteSelenium is a package of many automatic testing resources, each of them providing to various assessment requirements.

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guys, what is the use of Oldnumber? please?

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ReplyDeletehttp://www.wikitechy.com/view-article/c-program-to-check-armstrong-number-with-example-and-explanation

Both are really good,

Cheers,

Venkat

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whats the use of #

ReplyDeletePower=$(echo "$Rem ^ $Length" | bc )

ReplyDeleteexplain this line, what is | bc

Your blog is very interesting

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