Did you know that Linux makes it easy to create and use hidden files, which means you can easily tuck important documents away from plain sight? Here's how to manage those files.

PNG, short for Portable Network Graphics, is a popular and high-quality graphic file format. The PNG format is lossless and supports transparency.

There's a lot to learn about image files on the command line, from verifying file format to finding out where and when photos were taken and maybe even getting an unusual view of what they look like.

Jack Wallen shows you how to locate files on the Linux directory hierarchy using the find command.