The Linux operating system is powerful and flexible, able to run in several different modes of operation called run levels. When a Linux system starts, a function called "init" is used to configure ...

Linux tip: Many users are all too familiar with using Ctrl+Alt+Del (or, on a Mac, Cmd+Opt+Esc) to kill unresponsive processes. There isn't a comparable keyboard shortcut for Linux by default, but a ...

Learn 20 powerful Linux tips and tricks to work faster in the terminal. Practical command-line shortcuts used by real Linux ...

One of the simplest ways to run a command in the background is by appending an ampersand (&) at the end of the command. This method instructs the shell to execute the command as a separate background ...

While there are some amazing lightweight apps that you can use on Linux, they do nothing for slow startup times. Instead, the ...

Creating a lock file (say, in /tmp) is a common approach. On launch, check to see if the file already exists. If it does, exit. Otherwise, create it and continue. This can lead to problems if your app ...

One of the most crucial pieces of any UNIX-like operating system is the init dæmon process. In Linux, this process is started by the kernel, and it's the first userspace process to spawn and the last ...

Linux 101: What are zombie processes? Your email has been sent Zombie processes shouldn't be a problem on your system. But on the off chance they do arise, you need to know how to take care of them.

Think it's complex to connect your Python program to the UNIX shell? Think again! In past articles, I've looked into concurrency in Python via threads (see "Thinking Concurrently: How Modern Network ...