Shell basics. The Unix command line shell is roughly equivalent to the command window in Microsoft Windows (cmd or PowerShell). The commands we walk through below will work on any Unix-like system ...

On "1-2-3-4-5-6-7-8-9-0 Day," tech lovers all over the world celebrated the moment when the clocks in the popular Unix computer operating system struck that exact stream of numbers. But on Feb. 13 ...

The ps -e command produces a listing of all active processes on the system, including the name of the command that started the task. In BSD-based UNIX systems, you use the ps -ax command. The ...

The /opt file system is a relative newcomer to Unix file systems and is primarily used to house optional software packages. /tmp was and still is, of course, intended for temporary files.

Virtual OS hosting. Another approach to integrating Linux with Unix is to virtually host one operating system on another by using a commercial product such as VMware.In this way, the host ...

The command line is a text-only interface that allows you to communicate directly with the UNIX operating system (O/S). Although it is text-only, the command line is vastly more powerful than the ...

The UNIX operating system was created to be used at the command line. Until recently, there were no graphical user interfaces for the operating system, and all commands had to be typed in word by word ...

But Unix, the operating system that in one derivative or another powers nearly all smartphones sold worldwide, was born 50 years ago from the failure of an ambitious project that involved titans ...