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In computing, a shell is a computer program that exposes an operating system's services to a human user or other programs. In general, operating system shells use either a command-line interface (CLI) or graphical user interface (GUI), depending on a computer's role and particular operation. It is named a shell because it is the outermost layer ...
This is a list of POSIX (Portable Operating System Interface) commands as specified by IEEE Std 1003.1-2024, which is part of the Single UNIX Specification (SUS). These commands can be found on Unix operating systems and most Unix-like operating systems.
A Terminal Operating System, or TOS, is a key part of a supply chain and primarily aims to control the movement and storage of various types of cargo in and around a port or marine terminal. The systems also enables better use of assets, labour and equipment, plan workload, and receive up-to-date information.
Name Type Connectivity User Interface Operating System Description AbsoluteTelnet: Character: SSH 1 & 2, Telnet, TAPI dialup, direct COM port: Windows: Commercial software terminal client for Windows
MTS (Michigan Terminal System, developed by a group of universities in the US, Canada, and the UK for the IBM System/360 Model 67, System/370 series, and compatible mainframes) RTOS/360 (IBM's Real Time Operating System, ran on 5 NASA custom System/360-75s) [ 16 ]
Since 2001, the Macintosh operating system macOS has been based on a Unix-like operating system called Darwin. [8] On these computers, users can access a Unix-like command-line interface by running the terminal emulator program called Terminal , which is found in the Utilities sub-folder of the Applications folder, or by remotely logging into ...
The shell is both an interactive command language and a scripting language, and is used by the operating system to control the execution of the system using shell scripts. [2] Users typically interact with a Unix shell using a terminal emulator; however, direct operation via serial hardware connections or Secure Shell are
In computing, Bash (short for "Bourne Again SHell,") [6] is an interactive command interpreter and command programming language developed for UNIX-like operating systems. [7] Created in 1989 [ 8 ] by Brian Fox for the GNU Project , it is supported by the Free Software Foundation and designed as a 100% free alternative for the Bourne shell ( sh ...