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In most of today's popular programming languages and operating systems, a computer program usually only has a single entry point.. In C, C++, D, Zig, Rust and Kotlin programs this is a function named main; in Java it is a static method named main (although the class must be specified at the invocation time), and in C# it is a static method named Main.
Support for command history means that a user can recall a previous command into the command-line editor and edit it before issuing the potentially modified command. Shells that support completion may also be able to directly complete the command from the command history given a partial/initial part of the previous command.
The version included with MS-DOS 4 and PC DOS 4 is no longer a simple command-line utility, but a full-fledged installer. The command is available in MS-DOS versions 3.3 and 4 and IBM PC DOS releases 3 through 4. [1] This command is no longer included in DOS Version 5 and later, where it has been replaced by SETUP.
When a batch file is run, the shell program (usually COMMAND.COM or cmd.exe) reads the file and executes its commands, normally line-by-line. [1] Unix-like operating systems, such as Linux, have a similar, but more flexible, type of file called a shell script. [2] The filename extension.bat is used in DOS and Windows. Windows NT and OS/2 also ...
A graphical interface similar to one from the late 1980s, which features a graphical window for a man page, a shaped window (oclock) as well as several iconified windows. . In the lower right we can see a terminal emulator running a Unix shell, in which the user can type commands as if they were sitting at a termin
cmd.exe is the counterpart of COMMAND.COM in DOS and Windows 9x systems, and analogous to the Unix shells used on Unix-like systems. The initial version of cmd.exe for Windows NT was developed by Therese Stowell. [6] Windows CE 2.11 was the first embedded Windows release to support a console and a Windows CE version of cmd.exe. [7]
A command language is a language for job control in computing. [1] It is a domain-specific and interpreted language ; common examples of a command language are shell or batch programming languages .
Terminal is a command-line front-end. It can run multiple command-line apps, including text-based shells in a multi-tabbed window. It has out-of-the-box support for Command Prompt, PowerShell, and Bash on Windows Subsystem for Linux (WSL). [6] It can natively connect to Azure Cloud Shell. [7]