Binary to Decimal Converter

Binary to Decimal Converter

#!/bin/bash
echo "Enter a number :"
read Binary
if [ $Binary -eq 0 ]; then
    echo "Enter a valid number "
    return
else
    while [ $Binary -ne 0 ]; do
        Bnumber=$Binary
        Decimal=0
        power=1
        while [ $Binary -ne 0 ]; do
            rem=$(expr $Binary % 10)
            Decimal=$((Decimal + (rem * power)))
            power=$((power * 2))
            Binary=$(expr $Binary / 10)
        done
        echo " $Decimal"
    done
fi

Check This Link to Convert from Decimal to Binary