Given a number Num, find the sum of digits of the number.
Examples:
Input : 444 Output : sum of digits of 444 is : 12 Input : 34 Output : sum of digits of 34 is : 7
Approach:
1. Divide the number into single digits 2. Find the sum of digits .
Bash
# !/bin/bash # Program to find sum # of digits # Static input of the # number Num=123 g=$Num # store the sum of # digits s=0 # use while loop to # calculate the sum # of all digits while [ $Num -gt 0 ]
do # get Remainder
k=$(( $Num % 10 ))
# get next digit
Num=$(( $Num / 10 ))
# calculate sum of
# digit
s=$(( $s + $k ))
done echo "sum of digits of $g is : $s"
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Output:
sum of digits of 123 is : 6
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