LinuxRef is a fast and easy Core Commands Cheat Sheet for most flavors of Linux such as Ubuntu, Fedora, BSD, etc. LinuxRefPro contains the most common commands for various system functions (File commands, Process Management, File Permissions, and many more). LinuxRef is perfect for new Administrators and seasoned pros alike. Why carry huge reference manuals when you can have the same info in the palm of your hand! LinuxRefPro also has a built-in TCP/UDP Port database for doing quick port# lookups off-line...VERY handy! There are many new additions such as extended commands in most all categories and a new section with all the device mounting commands you need. This is the ideal down and dirty pocket reference for most all flavors of Linux. Thank you to all who have sent feedback via the feedback menu!