Calc

[xnpatreyk]

#!/bin/bash

echo "Podaj pierwsza liczba:" 
read a 
echo "Podaj druga liczba:" 
read b 
echo "Podaj operacje (jedna z): +, - , / lub X" 
read opr 

if [ $opr = "+" ] 
then 
    op=`expr $a + $b`
    echo "$op"
elif [ $opr = "-" ] 
then 
    op=`expr $a - $b`
    echo "$op"
elif [ $opr = "/" ] 
then 
    op=`expr $a / $b`
    echo "$op"
elif [ $opr = "X" ] 
then 
    op=`expr $a \* $b`
    echo "$op"
fi