Editor's Note: This article has been updated by its author. Thank you, Pat. Have you ever wanted to change the names of many files at once? Or, have you ever needed to use a default value for a ...

Check if a file is really a file, whether a string contains anything, and whether you can run a program with these vital patterns.

* Please note that this is for a uni assignment so I'm not after a solution - just after a bit of insight into the problem * I've been tasked with writing a "small search engine that is boolean aware" ...