Linux: get list of files a program currently has open

Question

In Linux, how can I get a list of files currently open in program X?

(Specifically, I'm on Fedora, and the program is Zend Studio, but I assume there's a general answer.)

Answer 1

Use e.g. lsof ("list open files") and filter the output, or use the -c programX option to restrict it to files opened by programX. This expression can be a wildcard.