...

Running the above line from an admin level command line will run powershell as admin, then from the powershell instance, it will run whatever .ps1 file you give it. Additionally, it won't alter the default policies set for the machine or user.

External Resources

List of  Aliases[https://docs.microsoft.com/en-us/powershell/scripting/getting-started/cookbooks/appendix-1---compatibility-aliases?view=powershell-5.1]