How to pass arguments to a powershell commandline

Question

Would appreciate it if someone helps me with the small task . I want to pass a command line arguments to a powershell script(that is not a file ).

Suppose , i just want to pass an argument that messagebox will show.

powershell.exe -command  "$str=$args[0];[System.Reflection.Assembly]::
LoadWithPartialName('System.Windows.Forms');
[System.Windows.Forms.Messagebox]::Show($str);" 'foo'

I want foo to be shown in messagebox. I get empty messagebox. Perhaps i missed something small.

instead of -command "code" arg, do -command "& {code} arg" — Mathias R. Jessen
– Mathias R. Jessen, Commented Jul 22, 2017 at 9:38
@MathiasR.Jessen please write your comment as answer, so nobody else waste time. — JPBlanc
– JPBlanc, Commented Jul 23, 2017 at 15:56

Mathias R. Jessen · Accepted Answer · 2017-07-23 16:06:52Z

2

Wrap the entire thing in a scriptblock {} and use the the call operator & to invoke it with an argument:

powershell.exe -command "& {$str=$args[0];[System.Reflection.Assembly]::LoadWithPartialName('System.Windows.Forms');[System.Windows.Forms.Messagebox]::Show($str)} 'foo'"

answered Jul 23, 2017 at 16:06

Mathias R. Jessen

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