WAP Find The sum Of The Digits Of The Number Entered At Command Line Gain Infiniti

for digit in "$@"
do
sum=`expr $sum + $digit`
done

echo "The Sum of $* is $sum";

OUTPUT:-

#!/bin/bash
#root@slack-linunx:~/scripts# ./sumOfCmdDigits.sh 1 2 3 4 5
#The Sum of 1 2 3 4 5 is 15
#root@slack-linunx:~/scripts#
sum=0;