How to run a Powershell script from the command line and pass a directory as a parameter

PowerShell -Command .\Foo.ps1

• Foo.ps1:

  Function Foo($directory)
  {
      echo $directory
  }
  
  if ($args.Length -eq 0)
  {
      echo "Usage: Foo <directory>"
  }
  else
  {
      Foo($args[0])
  }
  

  Despite Foo.ps1 being in the directory from where I am calling Powershell, this results in:

  The term '.\Foo.ps1' is not recognized as the name of a cmdlet, function, script file, or operable program. 
  Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
  

  • EDIT: Wasn't working because PowerShell was changing directory due to profile.ps1 containing cd C:\

I then tried to call it specifying the full path to the script file, but no matter what I try, I can't get it to work. I believe I have to quote the path because it contains whitespaces, as does the file name I need to pass in an argument to the script.

• Best guess so far:

  PowerShell -Command "'C:\Dummy Directory 1\Foo.ps1' 'C:\Dummy Directory 2\File.txt'"
  

  Outputs error:

  Unexpected token 'C:\Dummy Directory 2\File.txt' in expression or statement. 
  At line:1 char:136.
  

try this:

powershell "C:\Dummy Directory 1\Foo.ps1 'C:\Dummy Directory 2\File.txt'"