Why is PowerShell resolving paths from $home instead of the current directory?

I expect this little powershell one liner to echo a full path to foo.txt, where the directory is my current directory.

[System.IO.Path]::GetFullPath(".\foo.txt")

But it's not. It prints...

C:\Documents and Settings\Administrator\foo.txt

I am not in the $home directory. Why is it resolving there?

According to the documentation for [GetFullPath][1], it uses the current working directory to resolve the absolute path. The powershell current working directory is not the same as the current location:

PS C:\> [System.IO.Directory]::GetCurrentDirectory()
C:\Documents and Settings\user
PS C:\> get-location

Path
----
C:\

I suppose you could use SetCurrentDirectory to get them to match:

PS C:\> [System.IO.Directory]::SetCurrentDirectory($(get-location))
PS C:\> [System.IO.Path]::GetFullPath(".\foo.txt")
C:\foo.txt


[1]:

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`[System.IO.Path]` is using the shell process' current directory. You can get the absolute path with the `Resolve-Path` cmdlet:

Resolve-Path .\foo.txt