In Linux/UNIX, the concept of a user (owner) and group is very fundamental, as everybody want things to be kept secure and properly organized. The system was designed with security and ownership in mind, and this is why every file and directory has an owner and a group associated with it, and they have different permissions to access that particular file. So, how can we manipulate permissions with chmod, umask, chown and chgrp?
Month: November 2015
Sudo & Su – What’s the difference between them?
If you’re a Linux user, you’ve probably seen references to both sudo and su. These two commands are different ways of gaining root privileges. Each functions in a different way, and different Linux distributions use different configurations by default.
Linux Command Line 101
Starting a program, file management, system monitoring and more can all be performed without a single mouse click. Some swear by the command line, while others are happy never to have to encounter that intimidating black screen. If you’re the curious type and want to explore the full power of your Linux system that your GUI conveniently hides, then read on.