Curency conversion script.
I use it, to convert EUR to PLN. It will convert desired currency to PLN only, because it parses NBP actual currencies table.
Oh, and the most important thing - it requires internet connection to fetch data.
HOW TO USE:
Download script, set chmod +x on it, and execute with currency name as a parameter, for example:
It will provide actual euro value in PLN.
You can use any ID instead of EUR, for example USD, JPY, CAD and so on. All ID's are available here: