Процессы и службы

$p=Get-Process -Id $PID
$p|Select-Object ProcessName,CPU,WorkingSet64

$p=Start-Process pwsh -ArgumentList "-NoProfile -Command exit" -PassThru
$p.WaitForExit(); $p.Refresh()

$targets = Get-Process -Name notepad -ErrorAction SilentlyContinue
$targets | Select-Object Name,Id,StartTime
$targets | Stop-Process -WhatIf

$result = Get-Service Spooler | Select-Object Name,ServicesDependedOn,DependentServices
$resultType = if($null -eq $result){'<null>'}else{$result.GetType().FullName}
[pscustomobject]@{ Result=$result; Type=$resultType; Count=@($result).Count }

$result = Restart-Service Spooler -WhatIf
$items = @($result)
[pscustomobject]@{ Count=$items.Count; First=$items | Select-Object -First 1; IsNull=($null -eq $result) }

$result = Set-Service Spooler -StartupType Automatic -WhatIf
$resultType = if($null -eq $result){'<null>'}else{$result.GetType().FullName}
[pscustomobject]@{ Result=$result; Type=$resultType; Count=@($result).Count }

$s=Get-Service Spooler
$s.WaitForStatus([ServiceProcess.ServiceControllerStatus]::Running,[timespan]::FromSeconds(30))

$end=(Get-Date).AddSeconds(20)
do{$s=Get-Service Spooler;if($s.Status -eq "Running"){break};Start-Sleep 1}while((Get-Date)-lt $end)

$result = Start-Service Demo
$shape = if($null -eq $result){'<null>'}elseif($result -is [array]){'array'}else{$result.GetType().Name}
[pscustomobject]@{ Shape=$shape; Values=@($result) }

$id=[Security.Principal.WindowsIdentity]::GetCurrent()
$p=[Security.Principal.WindowsPrincipal]$id
$p.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)

$result = Start-Process pwsh -Verb RunAs -ArgumentList "-NoProfile -File `"$PSCommandPath`""
$shape = if($null -eq $result){'<null>'}elseif($result -is [array]){'array'}else{$result.GetType().Name}
[pscustomobject]@{ Shape=$shape; Values=@($result) }

$payload = Join-Path $env:TEMP "service-change.json"
@{Name="ApiService";Action="Restart"} | ConvertTo-Json | Set-Content -LiteralPath $payload
$arguments = @('-NoProfile','-File','.\Apply-ServiceChange.ps1','-InputPath',$payload)
Start-Process pwsh -Verb RunAs -Wait -ArgumentList $arguments
Get-Service ApiService | Select-Object Name,Status

$a=(Get-Process -Id $PID).CPU;Start-Sleep 1;$b=(Get-Process -Id $PID).CPU;$b-$a
$valueType = if($null -eq $a){'<null>'}else{$a.GetType().FullName}
[pscustomobject]@{ Value=$a; Type=$valueType; Count=@($a).Count }

$result = & { Get-Service Demo; Test-NetConnection localhost -Port 8080 }
$resultType = if($null -eq $result){'<null>'}else{$result.GetType().FullName}
[pscustomobject]@{ Result=$result; Type=$resultType; Count=@($result).Count }

# Сценарий для ревью: Перезапуск иногда действует не на тот процесс.
$deadline = (Get-Date).AddSeconds(15)
$samples = while((Get-Date) -lt $deadline){
  [pscustomobject]@{ At=[datetimeoffset]::UtcNow; Processes=@(Get-Process).Count; Jobs=@(Get-Job -State Running).Count }
  Start-Sleep -Milliseconds 500
}
$samples | Select-Object -Last 5