1c-bitrix script for mass change of product prices?

Question

1C-Bitrix

you need a script for mass changing the price and quantity of goods in the catalog, which would be executed via the php command line

Answer 1

this will surely help

Answer 2

AND? Do you need to write it? Or suggest how to do it? What exactly is not clear?
Start something like this:

require($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/prolog_before.php');
CModule::IncludeModule("iblock");CModule::IncludeModule("catalog");CModule::IncludeModule("sale");

Then just get the elements of the catalog and change the values.
But with the price... If you need massive price changes, it usually means that you are doing something wrong.