After setting a variable in a session it cant be retrieved with Get-Variable

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1

I understand that we can setup an env variable as follows:

$env:SmithySettings_ScriptTokens__ReleaseVersion = “2.4.0-ci.99”

I ran my app command and it pickec up the right value. However, when I tried to unset and removing it using

Remove-Variable -name SmithySettings_ScriptTokens__ReleaseVersion

I get

Remove-Variable: Cannot find a variable with the name ‘SmithySettings_ScriptTokens__ReleaseVersion’

I tried to print all session variables with Get-Variable, it is not there where as when I ran again my app it picked up the right value from the variable. Is there anything wrong I am doing? Thanks for your help

2

Use “Remove-Item”.
How to Remove Environment Variables in PowerShell?

3

I did but remove-item does not recognize the environment variable, however, doing

Get-ChildItem Env:

I see my variable in the list. I tried both

Remove-Item SmithySettings_ScriptTokens__ReleaseVersion

Remove-Item $env:SmithySettings_ScriptTokens__ReleaseVersion

I get

Remove-Item: Cannot find path 'C:\Projects\WindowsScripts\PS\Scripts\Smithy…

4

The error is correct . . . your variable isn’t a file. The Remove-Item cmdlet works with many “providers” (file system, registry, etc.). You haven’t specified a provider so the cmdlet assumes a default and looks for a file system object. In your case it’s a file named “SmithySettings_ScriptTokens__ReleaseVersion” in the current directory.

Your second attempt (using a variable named $env) is closer, but still incorrect. The provider name should be “ENV:”. The “$env:” is a variable prefix, not a provider.

Remove-Item ENV:SmithySettings_ScriptTokens__ReleaseVersion

So, ENV:some_name is a PATH to an environment variable, while $env:some_name is the NAME of an environment variable.

5

Yes this worked fine so many thanks for your help

6

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