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 ...

* 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" ...

I will start with one of my favorite features of Groovy that I would love to eventually see in the Java programming language. The safe navigation operator checks the object it is operating on for null ...

protect a variable name from surrounding characters. $ export foo=foo $ echo ${foo}bar # foo exists so this works as expected foobar $ echo $foobar # foobar doesn't ...