powershell
Command-line shell and scripting language designed especially for system administration.
TLDR
View the documentation for the command referring to the latest, cross-platform version of PowerShell (version 6 and above)
$ tldr pwsh
View the documentation for the command referring to the legacy Windows PowerShell (version 5.1 and below)
$ tldr powershell -p windows
View the documentation for the command referring to the legacy Windows PowerShell in older versions of tldr command-line client
$ tldr powershell -o windows