Powershell nested for loop to restart services - powershell

Question

My goal is to loop through all devices , stop a specific service for all of those devices ( in this case, IntenAudioService), then go kill speciifc tasks realted to that service ( let's just say task IntelX and task IntelY, if they exist)
Then just loop through again and re-start those services. can this be done all in 1 for loop? Is the syntax correct?
$devices= <<user can populate devices in this object. DeviceName or deviceID??>>
>Foreach ($device in $devices){
Invoke-Command -ComputerName $device {
net-stop IntelAudioService
taskkill /IM IntelX.exe /F
net start IntelAudioService
}
}
What if I wanted to also set a service for each device? Something like this?
foreach ($device in $devices){
Invoke-Command -ComputerName $device {
Set-Service -Name BITS -StartupType Automatic
}
}

Answer 1

Try with this, note that you can Invoke-Command to multiple hostnames at the same time. You can also create a New-PSession with multiple computers at the same time.
$ErrorActionPreference = 'Stop'
$devices = 'Hostname1','Hostname2'
$serviceName = 'IntelAudioService' # This can be an array
$processName = 'IntelX' # This can be an array
# Note: Looping through the devices an attempting to establish a
# PSSession like below is good if you're not sure if the remote host
# is up or if the device name is the right one, etc. Using a Try {} Catch {}
# statement in this case will let you know if you couldn't connect with a
# specific remote host and which one.
# You can also simply do: $session = New-PSSession $devices without
# any loop which will be a lot faster of course, however,
# if you fail to connect to one of the remote hosts
# you will get an error and the the PSSession cmdlet will stop.
$session = foreach($device in $devices)
{
try
{
New-PSSession $device
}
catch
{
Write-Warning $_
}
}
Invoke-Command -Session $session -ScriptBlock {
Get-Service $using:serviceName | Stop-Service -Force -Verbose
Get-Process $using:processName | Stop-Process -Force -Verbose
Start-Service $using:serviceName -Verbose
# Set-Service -Name $using:serviceName -StartupType Automatic
}
Remove-PSSession $session