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mevans 06-23-2015 02:04 PM

Strange PowerShell behavior with arguments
When I pass command-line arguments to PowerShell, I can see them if I do this:

foreach ($i in $args)
{Write-Host $i}

And $args.count returns the correct number.

However, whenever I try to access a specific arg, I always get an empty value. For example:
Write-Host $args[0]
Write-Host $args[1]

This always generates nothing. Even looking at various posts online, I can see maybe I needed to do it like this:

Write-Host $($args[0])
Write-Host $($args[1])

But that still returns nothing.

I finally found one notation that works:


Write-Host $a
Write-Host $b

What I don't understand is why I can't access the values from $args[0], even though I can iterate through the array and get the values?

kinook 06-23-2015 07:31 PM

[ and ] are special characters in Visual Build step properties--you need to double them to escape (i.e., $args[[0]]).

mevans 06-24-2015 05:18 PM

Ahhh...thank you. I doubled them elsewhere in the script and totally missed this.

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