Manage Processes in PowerShell
==============================

Author: Momchil Ivanov <momchil@xaxo.eu>
Date  : 2018.10.12

Introduction
------------

  Manage processes in PowerShell.

List Processes
--------------

  List processes:

    $ ps

      Handles  NPM(K)    PM(K)      WS(K)     CPU(s)     Id  SI ProcessName
      -------  ------    -----      -----     ------     --  -- -----------
         3540      80   226880      36388   6 801,25    904   1 AcroRd32
          525      23     9632      17960       0,86   5684   1 AcroRd32
          721      36    19784      29152       9,02  10388   1 AcroRd32
          782      59   158796      47620      35,81  11388   1 AcroRd32
          215      16     2620      10856       0,30   2056   1 AdobeARM

  List all fileds in a table format:

    $ ps | ft *

  List all fileds in a list format:

    $ ps | fl *

  List specific fields:

    $ ps | ft -Property ID, WorkingSet, ProcessName, Path

  Sort list per ID:

    $ ps | sort -Descending ID

  Filter processes where WS is greater than some value, 2e7 in this case:

    $ ps | where {$_.WorkingSet -gt 2e7}

  Filter and sort:

    $ ps | where {$_.WorkingSet -gt 2e7} | sort -Descending WS

  Add a property to the list:

    $ ps |
      where {$_.WorkingSet -gt 2e7} |
      sort -desc WS |
      ft @{Label = "NPM(M)"; Expression = {[int]($_.NPM / 1MB)}},
      @{Label = "PM(M)"; Expression = {[int]($_.PM / 1MB)}},
      @{Label = "WS(M)"; Expression = {[int]($_.WS / 1MB)}},
      @{Label = "VM(M)"; Expression = {[int]($_.VM / 1MB)}},
      Id, ProcessName, Path -Auto

  Equvalent to top command on Unix like operating systems:

    $ While(1) {ps | sort -des cpu | select -f 15 | ft -a; sleep 1; cls}

  List of top 10 processes per memory consumption:

    $ ps | sort -desc WS | select -f 10

  Total memory consumption:

    $ [int]($(ps | measure "WS" -Sum).Sum / 1MB)

  Total memory consumption of the top 10 processes:

    $ [int]($(ps | sort -desc WS | select -f 10 | measure "WS" -Sum).Sum / 1MB)

Aliases uses here
-----------------

  fl       Format-List
  ft       Format-Table
  measure  Measure-Object
  ps       Get-Process
  sort     Sort-Object
  where    Where-Object
  

References
----------

  1: https://docs.microsoft.com/en-us/powershell/scripting/getting-started/cookbooks/managing-processes-with-process-cmdlets?view=powershell-6