armstrong number in shell script | Linuxteach

Armstrong number in shell script

Armstrong number is a integer number which is equal to the sum of cube of each digit of its number. For example 153 is a armstrong number  because 153 is equal to 1³+5³+3³

Armstrong number in shell script can be found by adding the the cube of each digit of the number

Given a number n by the user determine whether the given number is Armstrong number or not by calculating sum of cube of each digit of its number.

this program will check whether the number is armstrong or not using while and if else.if number is armstrong then it will display number is armstrong otherwise it will display number is not armstrong.

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