Helpful Powershell Commands

More samples at www.oreil.ly/poweshell-cookbook

Call a local exe

— use the call operator &

Set-Location $composefolder

& ‘C:\Program Files\docker\docker-compose.exe’ “up”

Call another PS script

Invoke-Expression “.\configure-system.ps1”

Show all env vars

Get-ChildItem Env:

Find a particular env variable

Get-ChildItem env: | ? {$_.name -eq ‘Path’} |Format-Table -wrap

Set Persistent Env var (persists after Powershell Session ends)

$CurrentValue = [Environment]::GetEnvironmentVariable(“Path”, “Machine”)

[Environment]::SetEnvironmentVariable(“Path”, $CurrentValue + “;$Env:ProgramFiles\docker”, “Machine”)

Set a Temporary Env Var (only valid for the Powershell session)

$env:PSModulePath = $env:PSModulePath + “;c:\ModulePath”