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PowerShell is a task automation and configuration management program from Microsoft, consisting of a command-line shell and the associated scripting language. Initially a Windows component only, known as Windows PowerShell, it was made open-source and cross-platform on August 18, 2016, with the introduction of PowerShell Core. [9]
The directory stack underlies the functions of these two commands. It is an array of paths stored as an environment variable in the CLI, which can be viewed using the command dirs in Unix or Get-Location -stack in PowerShell. The current working directory is always at the top of the stack.
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] Terminal augments the text-based command experience by providing support for: Notebook tabs, to hold multiple instances in a single window; ANSI VT sequence support
4DOS, 4OS2, 4NT / Take Command Console and PowerShell (in PowerShell ISE) looks up context-sensitive help information when F1 is pressed. Zsh provides various forms of configurable context-sensitive help as part of its run-help widget, _complete_help command, or in the completion of options for some commands.
Although Microsoft Help Viewer was referred to as MS Help 3.x during development, it is a wholly new product and technically unrelated to Microsoft Help 2. With the growing need for a general Unicode-based help system, has become the default help system for Windows 10.
The command was first introduced as an external command (with filenames CHOICE.COM or CHOICE.EXE) with MS-DOS 6.0. [2] It is included in Novell DOS 7 and IBM PC DOS 7.0, and is also available from the command-line shell of some versions of Microsoft Windows, but not under Windows 2000 and Windows XP. [3]
PowerShell 3.0 Windows 8: Windows shell: Metro: Internet Explorer 10 IIS 8 12 COMMAND.COM, cmd.exe, PowerShell 3.0 Windows Server 2012 R2: Windows shell, Windows server core: Metro: Internet Explorer 11: IIS 8.5 12 (via "Desktop Experience") cmd.exe, PowerShell 4.0 Windows 8.1: Windows shell: Metro: Internet Explorer 11 IIS 8.5 12 COMMAND.COM ...
The detailed semantics of "the" ternary operator as well as its syntax differs significantly from language to language. A top level distinction from one language to another is whether the expressions permit side effects (as in most procedural languages) and whether the language provides short-circuit evaluation semantics, whereby only the selected expression is evaluated (most standard ...