String interpolation in PowerShell for an environment variable

Question

I want to replace the path in this command:

$Env:PHANTOMJS_BIN='D:\michael\software\phantomjs-1.9.7-windows\phantomjs.exe'

With the output of this call:

Split-Path (Get-Command phantomjs).Path

Preferably using string interpolation. How is this possible in PowerShell?

Martin Brandl · Accepted Answer · 2016-06-08 11:44:48Z

1

It depends whether you want to replace the variable just for the current session or permanent. Also machine-wide or for the user? Here an example to set the environment variable permanent for the machine:

[Environment]::SetEnvironmentVariable("PHANTOMJS_BIN", (Split-Path (Get-Command phantomjs).Path), [EnvironmentVariableTarget]::Machine)

What do you mean with string interpolation?

answered Jun 8, 2016 at 11:44

Martin Brandl

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2 Comments

Peter Mortensen Over a year ago

The term "interpolation" may come from Perl: "Interpolation, meaning "introducing or inserting something", is the name given to replacing a variable with the value of that variable.". But it is not clear what it means in the context of the question.

Peter Mortensen Over a year ago

In any case, your question does not belong in the answer, but in a comment to the question (Stack Overflow is not a forum). Can you move it?

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