The Unix operating system is one of computing's most significant technologies, ... a vast set of text-based system commands that vaguely resemble the commands used in Microsoft's DOS operating system.

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 ...

Unix systems, as different as they might be, have a lot in common with each other. Type the ‘ls’ command on any Unix system and something predictable happens: You will see a file listing.

The Unix command “uname -s” will tell you the operating system your machine is currently running, and under Mac OS X it returns “Darwin,” Apple’s name for the non-GUI, nongraphical core ...

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 ...