Editor’s note: The following review is part of Macworld’s GemFest 2012 series. Every weekday from mid June through mid August, the Macworld staff will use the Mac Gems blog to briefly cover a favorite ...

The often overlooked Xcode FileMerge app lets you spot what's changed between two files. Here's how to spot the differences using the tool. Most developers of Apple software are familiar with Apple's ...

Beyond Compare is a file compare and directory sync utility wrapped in one. Beyond Compare Standard edition ($30) is a powerful utility for tracking down differences between files and folders. Its ...

The Linux comm command makes it easy to compare a couple text files and determine if they both contain the same lines -- whether the file contents are sorted or not. The comm command on Linux systems ...