#!bin/bash
function dodaj
{
c=$[a+b]
echo "wynik to : " $c
}
fynction odejmij
{
{c=$[a-b]
echo "wynik to : " $c
}
echo "podaj liczbe A"
read a
echo "podaj liczbe B"
read b
echo "podaj znak (- lub +)"
read x
if [$x="+"]
then
dodaj
fi
if [$x="-"]
then
odejmij
fi
else
echo "podaj wlasciwy znak"
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