Passing variable to PowerShell

Question

I'm trying to pass a variable to this command in PowerShell

Start-Process $devconloc -ArgumentList "\disable" '"'$GPUList[1]'"' -ErrorAction Stop

$GPUList[0] is a hardware ID and needs to be passed to devcon.exe in quotes:

"PCI\VEN_10DE&DEV_1CBB&SUBSYS_087D1028&REV_A1\4&44A1B07&0&0008"

But I get the following error

Start-Process : A positional parameter cannot be found that accepts argument '"'.

Any ideas what is happening?

the `-ArgumentList` parameter requires a string or an _array_ of strings. you are not doing either since your items are delimited by a space. [*grin*] — Lee_Dailey, Feb 25 '19 at 12:36

score 0 · Answer 1 · answered Feb 25 '19 at 14:41

Like the others allready pointed out in the comments, there are two problems here:

You should pass a string-array to -ArgumentList. You do this by seperating you arguments with a ,. Not a whitespace.
To fill in the object $GPUList[1] correct with your " around the string, there are two ways to fill the string with object:
1. Escaping the " in the string with ` and phrasing the variables in () to make sure the array position will be taken in notice : -ArgumentList '\disable', `"$($GPUList[1])`"
2. Filling in the variable with a position reference: -ArgumentList 'disable', ('"{0}"' -f $GPUList[1])

1 Answers1