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carrasco90
Asked: 2020-06-01 23:59:17 +0800 CST 2020-06-01 23:59:17 +0800 CST

Sum all the Arrays in a single variable to display on the screen

  • 772

In the code, the $total2 of each product is placed in an array so that when the question is answered "no", we have "n" arrays. What loop can I do to add them all in a single variable and print it to the screen?

#!/bin/bash
clear
read -p "Do you want to continue shopping?: " response
while [ "$response" == 'yes' ]
   do
        read -p "What product are you going to buy?" product
        read -p "What is the price of this product?: " price
        read -p "How much of this product will you take?: " quantity
        lettotal2=expr $precio\*$cantidad
        echo "$product ($price €) X $quantity = $total2 €"
        array[i]=$total2
       ((i++))
        read -p "Do you want to continue shopping?: " response
        if [ "$answer" == 'no' ]
         then
           break
         fi
   donate     



here I want to add all the arrays created to show that sum on the screen.



echo "The total purchase price is $sum €."



#
array

1 Answers

  1. Best Answer

    Go accumulating the total value in a variable:

    total2=$(( precio * cantidad ))
echo "$producto ($precio €) X $cantidad = $total2 €"
total=$(( total + total2 ))

    So, all your code can be something like:

    read -p "¿Desea seguir comprando?: " respuesta
while [ "$respuesta" == 'si' ]
   do
        read -p "¿Que producto va a comprar? " producto
        read -p "¿Cual es el precio de este producto?: " precio
        read -p "¿Que cantidad se llevará de este producto?: " cantidad
        total2=$(( precio * cantidad ))
        echo "$producto ($precio €) X $cantidad = $total2 €"
        total=$(( total + total2 ))
        read -p "¿Desea seguir comprando?: " respuesta
        if [ "$respuesta" == 'no' ]
         then
           break
         fi
   done     

echo "Precio total a pagar: $total"
    • 1