Some helpful commands for PowerShell Beginner.


 Important
Some Commands/Scripts require Powershell version 3.0 or above.



Table of Contents

 

Back to top 


Applies to

  • Windows Server 2008,
  • Windows Server 2008 R2,
  • Windows Server 2012,
  • Windows Server 2012 R2

 

Back to top 


General

Powershell Function (Basics)

Powershell .NET Namespace

  

Back to top 


Managing Modules

How to find loaded Modules?

Get-Module

How to find available modules?

Get-Module -ListAvailable

How to import a Module?

import-module activedirectory

How to get help for Modules?

Get-Help about_module

How to import All modules all together.

Get-Module -ListAvailable | Import-Module -Verbose

How to find particular module commands ?

Get-Command -Module activedirectory

How to find Module name of the CMDLETs

get-command get-*

 

Back to top 


Getting Help

How to get Particular CMDLET help?

get-help Get-Service 

get-help Get-Service -Full

get-help Get-Service -Detailed

get-help Get-Service -ShowWindow

get-help Get-Service -Online

get-help Get-Service -Examples

How to get full help  of a Module (e.g. grouppolicy, activedirectory)

GCM -Module grouppolicy | Foreach {get-help $_.name -Examples} GCM -Module activedirectory | Foreach {get-help $_.name -Examples}   

How to Update Powershell Help

Update-Help -Force

 

Back to top 


Powershell environment

Powershell Color Code-MSDN

Helpful !!! when we are created HTML report using Powershell.

See http://msdn.microsoft.com/en-us/library/aa358802%28v=vs.85%29.aspx

Upgrading the Powershell Version 2 to 4 on 2008 R2

http://social.technet.microsoft.com/wiki/contents/articles/20623.upgrading-the-powershell-version-2-to-4-on-2008-r2.aspx

How to check Powershell Path

$Pshome

How to find Powershell Alias

GAL

How to find a particular Alias

#GAL is the Alias of  Get-Alias
GAL -Definition Get-Service

How to check Powershell Version?

Environment Variable to get PowerShell Version

$PSVersionTable

OR

($PSVersionTable).BuildVersion

=================================

$host.Version.Major OR $psversiontable OR Get-Host | Select-Object Version

How to change the execution Policy?

Set-ExecutionPolicy Unrestricted
or

Set-ExecutionPolicy Unrestricted CurrentUser

#Without Prompt

Set-ExecutionPolicy Unrestricted -force

#Recomendad seeting is Allsigned/Remotesigned

#There are Five Policies-Restricted(Default Setting),Unrestricted,Allsigned,

  Remotesigned & Bypass.

See the details about Powershell Execution Policy.

How to Test Performance of a Powershell Script?

Measure-Command { .\DCInventory.ps1 }

See the execution time of DCInventory.ps1

How to use page break like More "Switch" at cmd Prompt.

Get-Service | Out-Host -Paging

 

Back to top 


System Management

Event Log

When & who rebooted the system? (Below simplified command is required Powershell 3 & above, "?" is used for "where")

Get-EventLog -log System | ? EventID -EQ 12 | select username,TimeGenerated

or

Get-EventLog -log System | where EventID -EQ 12 | select username,TimeGenerated

or

Get-EventLog System | ? Source -eq user32 | select MachineName,TimeGenerated,UserName,Message -First 1

How to find LastBootupTime ? (Required Powershell 3 & above)

Get-CimInstance Win32_OperatingSystem | select  csname,LastBootUpTime

Server Services Inventory.

#Total Nos. of Services.
PS C:\> $all = Get-Service
PS C:\> $all.Count
135
 or

 PS C:\> Get-Service | measure | select count

#Stopped Services
PS C:\> $all | ? status -NE 'running'
 
#Running Services
PS C:\> $all | ? status -NE 'stopped'
 
#Count All Running Services
PS C:\> $allRunning = $all | ? status -NE 'stopped'
PS C:\> $allRunning.Count
60
 
#Count All stopped Services
PS C:\> $allstopped = $all | ? status -NE 'running'
PS C:\> $allstopped.Count
75

Getting Computer OS & SP for multiple Computers

$computers = get-content C:\computers.txt
Get-WmiObject win32_operatingsystem -ComputerName $computers  | select CSName,Caption, CSDVersion | FL

You can query multiple systems & that script is available in Microsoft Script Center.

Installed Hotfix/Update/ServicesPack Report.

Get-HotFix
or
gwmi -Query "Select * from Win32_QuickFixEngineering"
or
gcim -Query "Select * from Win32_QuickFixEngineering"
or
systeminfo | find ": KB"
or
wmic qfe

 

Back to top 


WinRM

How to enable WinRM ?

winrm qc

 

Back to top 


Directory Servcies

Verify ForestPrep, Domainprep & Rodcprep Result

Finding FSMO For Multi Domains

You no need to change anything in that Script; also AD module is not required. Powershell internals

Find attributes from bulk computers.

Function Com-Attrs {
$Computers= get-content C:\computers.txt
foreach ($Computer in $computers)
{
 
Get-ADComputer $Computer | 
Select-Object DNSHostName,Enabled,SamAccountName
 
    }
 
}
Com-Attrs | FT -AutoSize

Get & Set the RDP for multiple Computers

http://gallery.technet.microsoft.com/scriptcenter/Get-Modify-the-RDP-status-467b2e42

Get the Internet Explorer Version for multiple Computers

http://gallery.technet.microsoft.com/scriptcenter/Servers-Inventory-report-97da5709

Powershell Workflow-Scan media files into TerraByte Storage

http://gallery.technet.microsoft.com/scriptcenter/Resume-Suspend-Job-using-f955002a

WSMAN Registry key

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WSMAN

How to check WINRM Settings.

winrm get winrm/config

How to change "MaxEnvelopeSizekb" value ?

winrm set winrm/config @{MaxEnvelopeSizekb="1024"}

Remotely getting NTP Servers from PDC - Below is the Code

$computer = [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().PdcRoleOwner.Name 
$Reg = [Microsoft.Win RegistryKey]::OpenRemoteBaseKey('LocalMachine', $computer) 
$RegKey= $Reg.OpenSubKey("SYSTEM\\CurrentControlSet\\Services\\W32Time\\Parameters"
$NTP = $Regkey.GetValue("NtpServer"
Write-host $NTP -BackgroundColor DarkMagenta -ForegroundColor Cyan

DCs Inventory 

[system.directoryservices.activedirectory.domain]::GetCurrentDomain().DomainControllers | Select Name,IPAddress,OSVersion,SiteName | FT -AutoSize

Getting the Domain Functional level

[system.directoryservices.activedirectory.domain]::GetCurrentDomain().DomainMode

Getting the Forest Functional level

[system.directoryservices.activedirectory.forest]::GetCurrentForest().ForestMode

Getting the Trust

[system.directoryservices.activedirectory.domain]::GetCurrentDomain().GetTrustRelationship()

How to restore the ActiveDirectory Objects

. See the Tombstone
Get-ADObject -Filter {LastKnownparent -eq "OU=ADFS,DC=Contoso,DC=COM"} -IncludeDeletedObjects
 
 Restore the Object
Get-ADObject -Filter {LastKnownparent -eq "OU=ADFS,DC=Contoso,DC=COM"} -IncludeDeletedObjects | Restore-ADObject -NewName bshwjt

See the deleted Objects From Active Directory Recycle BIN

##Prerequsites : . WIndows 2008 R2 DFL 2) Active Directory Recycle Bin
Get-ADObject –SearchBase “CN=Deleted Objects,DC=Contoso,DC=Com” –ldapFilter “(objectClass=*)” -includeDeletedObjects | FL *

Total Sites

[system.directoryservices.activedirectory.forest]::GetCurrentForest().Sites.Count

All Sites Name

 
[system.directoryservices.activedirectory.forest]::GetCurrentForest().Sites.name

DCs 

[system.directoryservices.activedirectory.domain]::GetCurrentDomain().DomainControllers

Nos. of DCs

 
[system.directoryservices.activedirectory.domain]::GetCurrentDomain().DomainControllers.Count

Logon Information

Get-ItemProperty -Path 'HKCU:\Volatile Environment'

How to check Active directory recycle bin enabled or not ?

Get-ADOptionalFeature -F 'name -like "Recycle Bin Feature"' | Select-Object EnabledScopes

Active directory recycle bin is disabled ,If above command output is empty.

 

Get the permission of an User for an OU

ipmo activedirectory

cd ad:

$ACL = get-acl 'AD:\OU=cno,ou=cno,Dc=contoso,DC=com' | select -exp Access | ? IdentityReference -match 'kerbtest'

$ACL

 

Back to top 


Remote Management

Installation and Configuration for Windows Remote Management

Smallest PS Script for Get the WINRM Status of Multiple Computers

Authentication for Remote Connections

 

Back to top 


Patching and Hotfixes

Get the latest patching Date

Get-HotFix | Select HotFixID,InstalledOn,InstalledBy -First 1

DNS

How to check specific DNS Reverse Lookup Zone present or not?

dnscmd ANA-DC003 /enumzones /reverse | Select-String -Pattern '    in-addr.arpa'

 

Back to top 


Networking

How to test Port?

$SOC = New-object Net.Sockets.TcpClient

$SOC.Connect("    1",636)

$SOC.Connected

 

Back to top 


See Also

 

Back to top 


Another languages available

 

Back to top 


Gallery downloads

 

Back to top