You can use the env: PowerShell drive to list all Windows environment variables like this:
PS> Dir env:*user* Name Value ---- ----- USERNAME w7-pc9 USERPROFILE C:\Users\w7-pc9 ALLUSERSPROFILE C:\ProgramData USERDOMAIN DEMO5
To access the content of an individual environment variable, use the variable syntax like this:
"Username: $env:username"
And if you want to list environments with a keyword in its value, use Where-Object. This will list all environment variables with a "program" keyword in its value:
PS> dir env: | Where-Object { $_.Value -like '*Program*' } Name Value ---- ----- ALLUSERSPROFILE C:\ProgramData CLASSPATH .C:\Program Files (x86)\QuickTime\QTSystem\Q... CommonProgramFiles C:\Program Files\Common Files CommonProgramFiles(x86) C:\Program Files (x86)\Common Files CommonProgramW6432 C:\Program Files\Common Files ...
