#!/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

14 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

ReplyDeletethank q by antony

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.

ReplyDeleteEach one of these instruments fall under exactly the same umbrella of open source category and supports just webbased s/w testing . For more info on this see this link

guys, what is the use of Oldnumber? please?

ReplyDeleteVery informative article.Thank you author for posting this kind of article .

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