Environment variables

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about_Environment_Provider - PowerShellMicrosoftLearn

Recognized environment variablesMicrosoftLearn

1. Working in the environment variables drive location

The environment variables drive is found at: Env:

PS C:\> Set-Location Env:
PS Env:\> ls
Name                           Value
----                           -----
__PSLockDownPolicy             0
ALLUSERSPROFILE                C:\ProgramData
APPDATA                        C:\Users\<user>\AppData\Roaming
...

2. View value of environment variable

The Environment provider also exposes environment variables using a variable prefix of $Env:

PS C:\> echo $Env:<env> 

# eg.
PS C:\> echo $Env:ProgramData
C:\ProgramData

3. List all environment variables

PS C:\> Get-Item -Path Env:
PS  C:\> Get-ChildItem -Path Env:

Alternatively, we can view it from the Env: folder too (refer to section above).