http://www.perlmonks.org?node_id=734394


in reply to Re^2: Files not altered
in thread Files not altered

It may not be exactly related to your requirement.

I'm trying to convey that when you see that file is not updated, there may be a case that the file handle not selected for automatic flushing. In such a case, you can use the select to make the file updation proper.

This is just to give you some clarification in the "files not altered" matter.