Command set and command switches. Both are based on the UNIX operating system, so they have the core of the operating system in common.
GNU/Linux is a 'Unix-like' operating system because it was based on Unix, and is similar in many ways.
Widely used text-based operating system? Well, almost any Unix or Unix-like can be used in this way. X11 GUIs are an entirely optional application. Many Linux users only use the command line.
It depends; some users may use a GUI while others prefer the command line (just like Windows, for example).
Yes. UNIX is a computer operating system.
Linux is a Unix-like system. This means that it is inspired or influenced by Unix in some shape or form (Linux started off from Minix), but it is not directly derived from Unix. However, BSD is based on Unix, and macOS is indirectly Unix-based because of its mixed heritage with BSD.
ms dos. unix.
The four main components are: the Kernel, the Shell, the File system and Command
BG is a command on Unix and Unix-like operating systems to run a job(process) asynchronously in the background.
Command Prompt is the command-line interpreter used within the Windows operating system. As Mac OS X is based on the Unix operating system it uses the a Unix Shell command-line interpreter. You can access the Shell by running the Terminal application which can be found in the Utilities folder which is within the Applications folder.
Yes, Unix is system software. It is a kind of operating system.
Unix came first; Linux is a clone of the Unix Operating System.