递归获取父进程

get-parent-process.psm1

#usage:
# Import-Module ./get-parent-process.psm1 -Force
## example
# Get-ParentProcess -Name CExecSvc
# Get-ChildProcess -Name CExecSvc

function Get-ParentProcess {
  [cmdletbinding()]
  param(
  [parameter(mandatory=$true,position=1)][string]$Name
  )
  #main
  try {
    $Id = (get-process -Name $Name).Id;
    $ErrorActionPreference = "Stop";
    $ParentId = "";
    $Prefix = "";
    while($Id -ne "")
    {
      if($ParentId -eq ""){
        echo "$Name $Id";
      }
      $ParentId = (wmic process where ProcessId=$Id get ParentProcessId).split("=")[1].Trim();
      if($Id -eq $ParentId)
      {
        break;
      }
      $Name = (wmic process where ProcessId=$ParentId get Name).split("=")[1].Trim();
      $Prefix = "+$Prefix";
      echo "$Prefix $Name $ParentId";
      $Id = $ParentId;
    }
  } catch{
    Write-Host "Done";
  }
}

function Get-ChildProcess {
[cmdletbinding()]
  param(
    [parameter(mandatory=$true,position=1)][string]$Name
  )
  #main
  try {
    $Id = (get-process -Name $Name).Id;
    $ErrorActionPreference = "Stop";
    $i = 0;
    foreach($item in (wmic process where ParentProcessId=$Id get Name,ProcessId))
    {
      if ($i -eq 0)
      {
        echo "$Name $Id";
      }
      if (($i % 2) -eq 0)
      {
        $Name = $item.split("=")[1].Trim();
      }
      else
      {
        $ProcessId = $item.split("=")[1].Trim();
        echo "- $Name $ProcessId";
        $Name = "";
        $ProcessId = "";
      }
      $i++
    }
  } catch{
    Write-Host "Done";
  }
}