PS> $env:windir C:\Windows PS> $env:ProgramFiles C:\Program Files
PS> "My computer name $env:COMPUTERNAME" My computer name MYHome-test-01
PS> ls env: Name Value ---- ----- ALLUSERSPROFILE C:\ProgramData APPDATA C:\User\sv-test\Home\AppData\Roaming CommonProgramFiles C:\Program Files\Common Files COMPUTERNAME MYHome-test-01 ComSpec C:\Windows\system32\cmd.exe FP_NO_HOST_CHECK NO HOMEDRIVE C: HOMEPATH Users\v-test\Home
PS> $env:TestVar1="This is my environment variable" PS> $env:TestVar2="Hollow, environment variable" PS> ls env:Test* Name Value ---- ----- TestVar1 This is my environment variable TestVar2 Hollow, environment variable
PS> del env:windir PS> $env:windir PS>
PS> $env:OS Windows_NT PS> $env:OS="Redhat Linux" PS> $env:OS Redhat Linux
PS> md .myscript Directory: Mode LastWriteTime Length Name ---- ------------- ------ ---- d---- 2011/11/29 18:20 myscript PS> cd .myscript PSmyscript> "write-host 'Hollow , Powershell'" > hollow.ps1 PSmyscript> .hollow.ps1 Hollow , Powershell PSmyscript> cd .. PS> $env:Path+=";C:PowerShellmyscript" PS> hollow.ps1 Hollow , Powershell PS> hollow Hollow , Powershell
PS> [environment]::SetEnvironmentvariable("Path", ";c:\powershellscript", "User")
PS> [environment]::GetEnvironmentvariable("Path", "User")
;c:\powershellscript
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