Powershell Cheat Sheet

Useful Commands

Get-Help	Displays help about windows Powershell cmdlets and concepts
Get-Command	Retrieves a list of all available Powershell cmdlets
Get-ChildItem	Gets the files and folders in a file system drive
Get-Content	Gets the contents of a file
Get-Member	Gets the properties and methods of objects
Where-Object	Selects objects from a collection based on their property values
ForEach-Object	Performs an operation against each item in a collection of input objects
Select-Object	Selects objects or object properties
Select-String	Finds text in strings and files
Out-File	Sends output to a file
Out-Null	Deletes output instead of sending it down the pipeline
Out-Grid	Sends output to an interactive table in a separate window
New-Object	Creates an instance of a Microsoft .NET framework or COM object
Write-Host	Writes customized output to a host
Write-Output	Sends the specified objects to the next command in the pipeline. If the command is the last command in the pipeline, the objects are displayed in the console

grep is an alias for Select-String

Get-ChildItem -recurse	Goes through an gets all items and their child items (recursively)
Get-ChildItem –recurse | foreach-object{write-host $_.name}	Take the output from the first command as input and iterate through it and write only the objects' name output to the console

Take the output from the first command as input and iterate through it and write only the objects' name output to the console

You can store command output to variables

e.g.

$dir = get-childitem

$dir

• Assign and store variables with the sigil, $

Typecasting:

e.g.

[xml]$xml

Assigning command output to a variable:

• Unlike linux, in powershell you don't need to surround a command in `` or $() in order to store command output to a variable

e.g.

$xml = get-content ".\backspace.xml"

Run a script directly from memory: