<t>Generally, it would be better to pass info to the script via a parameter rather than a <br/>
global (environment) variable. But if that is what you need to do you can do it this way:<br/>
<br/>
$env:FOO = 'BAR'; ./myscript<br/>
<br/>
```<br/>
<br/>
The environment variable $env:FOO can be deleted later like so:<br/>
<br/>
```<br/>
Remove-Item Env:\FOO<br/>
<br/>
```</t>
