Run Powershell script from URL without temporary file

Question

I want to write a PowerShell script that runs a PowerShell script stored at a URL, passing both custom arguments and forwarding any arguments that are given to this PowerShell. Concretely, I can do:

$VAR=Invoke-WebRequest http://example.com/powershell.ps1
$TEMP=New-TemporaryFile
$FILE=$TEMP.FullName + ".ps1"
$VAR.Content | Out-File $FILE
& $FILE somearguments $args

I'd ideally like to do that without using a temporary file, however powershell -content - doesn't seem to allow also passing arguments. Is there any way to avoid the temporary file?

Answer 1

Stolen straight from chocolatey's site. I use this more often than i should

iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))

source

Answer 2

Automatic download and start remote PowerShell script w/0 save (on the fly):

iex (iwr $ScriptURL).Content

WTF:

alias iex,iwr

More help:

Get-Help Invoke-Expression
Get-Help Invoke-WebRequest