I forgot to blog about this before, but 2 months ago PowerShell core came available: [WayBack] PowerShell Core 6.0: Generally Available (GA) and Supported! | PowerShell Team Blog.
[WayBack] Installing PowerShell Core on macOS and Linux | Microsoft Docs is easy (one way is through homebrew:
$ brew tap caskroom/cask
$ brew cask install powershell
If you already installed a beta, then the steps are these:
$ brew update
$ brew cask reinstall powershell
Note that after installation, it is known as pwsh (at least one of the betas named it powershell) to set PowerShell Core apart from PowerShell*:
$ pwsh --version
PowerShell v6.0.2
Via: [WayBack] PowerShell Core 6.0 is a new edition of PowerShell that is cross-platform (Windows, macOS, and Linux), open-source, and built for heterogeneous environm… – Lars Fosdal – Google+
*pwsh versus powershell
There has been quite a discussion on the PowerShell Core repository on the rename, but I think it is for a good reason.
Too bad that during part of the beta, the old name powershell was used, but beta-time means things break every now and then.
PowerShell Core is sufficiently different from prior PowerShell versions to warrant a name change. This also makes it a lot easier to use them side-by-side.
Many other names (like posh, pcsh or psh) were considered, usually because of naming conflicts with existing tools (like posh) or easy confusion with existing shells (like pcsh and csh). A benefit on Linux/macOS is that it now ends with sh like virtually all other shells.
More background information is at:
–jeroen
The Wiert Corner - irregular stream of stuff 