https://christoph.vollmann.co/2016/12/sharepoint-entwicklungsfarm-hoch-und-runterfahren/

StartStopDevVMs.ps1

# Change VM names to your own names

$baseVMs = @("ROUTER","AD")
$sqlVMs = @("SPSQL2016")
$sharepointVMs = @("SP2016-1","SP2016-2")

# -------------------------------------------------------------------------------------------------

function Start-VMSet($vmSet){

    $vmStarted = $false
    $waitTime = 10

    foreach ($vmName in $vmSet) {
        $vm = Get-VM -Name $vmName
        write-host $vm.Name ": " -NoNewline
        switch ($vm.State) {
            "Running" { write-host "already running" -f Green }
            "Off" {
                write-host "starting" -f Cyan
                Start-VM -VM $vm
                $vmStarted = $true
            }
            default { write-host "unknown state:" $vm.State -f Yellow }
        }
    }

    if ($vmStarted) {
        write-host "Waiting for" $waitTime "seconds for machines to boot up..."
        Start-Sleep -Seconds $waitTime
    }

}

function Stop-VMSet($vmSet){
    foreach ($vmName in $vmSet) {
        $vm = Get-VM -Name $vmName
        write-host $vm.Name ": " -NoNewline
        switch ($vm.State) {
            "Off" { write-host "already stopped" -f Green }
            "Running" {
                write-host "stopping" -f Cyan
                Stop-VM -VM $vm
            }
            default { write-host "unknown state:" $vm.State -f Yellow }
        }
    }
}

write-host "1....: Start VMs`n2....: Stop VMs"
$command = Read-Host "Well?"

if ($command -eq 2 -and (Get-VM | ? { $_.State -eq "Running" }).Count -eq 0) {
    write-host "Funny :) - There is no VM running. Did you mean start?" -f Yellow
    exit
}

switch ($command) {
    1 { # Start
        write-host "Starting base VMs..." -f Magenta
        Start-VMSet $baseVMs

        write-host "Starting SQL VMs..." -f Magenta
        Start-VMSet $sqlVMs

        write-host "Starting SharePoint VMs..." -f Magenta
        Start-VMSet $sharepointVMs
    }
    2 { # Stop
        $withBaseVMs = Read-Host "Also stop base VMs? [y/N]"
        write-host "Stopping SharePoint VMs..." -f Magenta
        Stop-VMSet $sharepointVMs

        write-host "Stopping SQL VMs..." -f Magenta
        Stop-VMSet $sqlVMs

        if ($withBaseVMs.ToLower() -eq "y") {
            write-host "Stopping base VMs..." -f Magenta
            Stop-VMSet $baseVMs
        } else {
            write-host "Skipped base VMs" -f Magenta
        }
    }
    default { exit }
}

write-host "finished" -f Green