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  • Turning Off “FullLanguage” Mode

    All PowerShell versions PowerShell can be restricted in many ways. One is to set the language mode from “FullLanguage” to “RestrictedLanguage”. It is a way of no return, at least unless you close and re-open PowerShell: $host ...
  • Controlling Execution of Executables

    All PowerShell versions PowerShell treats executables (files with extension EXE) like any other command. You can, however, make sure that PowerShell will not execute any or execute only a list of approved applications. The default setting allows any EXE...
  • Faking Object Type

    PowerShell 3 and later The internal PowerShell ETS is responsible for converting objects to text. To do this, it looks for a property called “PSTypeName”. You can add this property to your own objects to mimic another object type and make...
  • Creating New Objects

    PowerShell 3 and later Here is a simple, yet effective, way of creating new custom objects: $object = [ PSCustomObject ] @ { Name = ' Weltner ' ID = 123 Active = $true } This will produce full-blown PowerShell objects with preset property values...
  • Using PowerShell Remoting without Domain

    PowerShell 3 and later By default, when you enable PowerShell remoting via Enable-PSRemoting, then only Kerberos authentication is enabled. This requires both computers to be in the same domain (or trusted domains), and it only works when you specify...
  • Enabling and Disabling PowerShell Remoting

    PowerShell 3 and later If you want to access a computer remotely via PowerShell, then on the destination side (on the computer you want to visit), run this line of code with Administrator privileges: PS> Enable-PSRemoting -SkipNetworkProfileCheck ...
  • Reading System Logs from File

    All PowerShell Versions Sometimes, you may have to evaluate system log files that have been exported to disk, or you want to read a system log file in “evtx” format directly from a file. Here is how you do this: $path = " $env:windir...
  • WMI Search Tool

    All PowerShell Versions WMI is a great and powerful technique: simply specify a WMI class name, and back you get all the instances of that class: PS> Get-WmiObject -Class Win32_BIOS SMBIOSBIOSVersion : 76CN27WW Manufacturer : LENOVO Name : 76CN27WW...
  • List All Information

    All PowerShell Versions Most of the time, PowerShell will not show you the complete results that you get from cmdlets. Instead, PowerShell limits the results to only the most common pieces of information. PS> Get-WmiObject -Class CIM_CacheMemory BlockSize...
  • Getting US ZIP Codes

    All PowerShell Versions Ever wanted to find out the ZIP code of a city, or vice versa find out the city that belongs to a ZIP code? Then simply ask PowerShell to connect to a free web service and get that information for you: $webservice = New-WebServiceProxy...
  • Reading Registry Values with Type

    All PowerShell Versions Reading all registry values is simple when you do not need the data type: simply use Get-ItemProperty: Get-ItemProperty -Path HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run If you do need the data type, a little more effort...
  • Finding Files plus Errors

    All PowerShell Versions When you use Get-ChildItem to recursively search directory paths for files, you may stumble across subfolders where you do not have enough privileges. To suppress errors, you may use –ErrorAction SilentlyContinue. That’s...
  • Finding Changeable Properties

    All PowerShell Versions When you get back results from PowerShell cmdlets, the results are objects and have properties. Some properties can be changed, others are read-only. Here is a simple trick to find out the object properties that you can actually...
  • Getting a Variable Inventory

    PowerShell ISE 3 and later For documentation purposes, you may want to get a list of all variables that a PowerShell script uses. Here is a function called Get-Variable: function Get-Variable { $token = $null $errors = $null $ast = [ System.Management...
  • Renaming Variables

    PowerShell ISE 3 and later Here is a simple variable renaming function that you can use in the built-in ISE editor that ships with PowerShell 3 and later. It will identify any instance of a variable and then replace it with a new name. function Rename...
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