Executing an Environment Variable based path in the Powershell Terminal

Question

I want to execute a path in the Windows Powershell terminal based on the concatenation of an environment variable and a string, in one line.

For instance, cmd.exe allows me to execute the following:

c:\temp> %PYTHON2PATH%\python.exe main.py

With Powershell, it seems that one needs to refer to the environment variable using:

PS c:\temp> $Env:PYTHON2PATH\python.exe

Although this only works if I press TAB (which then de-references the variable), before pressing Enter. Is there is way do this without having to de-reference it using the TAB key?

Ansgar Wiechers · Accepted Answer · 2018-10-17 10:40:44Z

2

Use the call operator (&) if you want to invoke command strings with unexpanded variables:

& $env:PYTHON2PATH\python.exe

or

& "${env:PYTHON2PATH}\python.exe"

answered Oct 17, 2018 at 10:40

Ansgar Wiechers

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