PowerShell Training Resources

Here are some sites and references if you want to learn or train in Powershell

Microsoft Virtual Academy

Microsoft Virtual Academy (MVA) is a logical first-stop when searching for sources of free learning. A search for “powershell” on the main page of the MVA website returns 68 hits, 13 of which include PowerShell in the course title.

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Powershell Cheat Sheet

roualin powershell-cheat-sheet Powershell Cheat Sheet

 

powershell-cheat-sheet

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O365 – Tips & Tricks in Powershell

Hello,

For those who are starting to work on O365 using powershell, here below are some short lines to help you.

Prerequisites :

https://technet.microsoft.com/en-us/library/dn975125.aspx

Connect to O365 :

$cred=get-credential -Message "Please provide an O365 admin account"
connect-msolservice -credential $cred
$O365Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell -Credential $cred -Authentication Basic -AllowRedirection
Import-PSSession $O365Session -AllowClobber

Add a licence to a user :

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O365 – Check Sync batch


When you are doing a migration from Exchange to O365, there are two ways :

  • Direct Migration
  • Two step migration (provisioning then migrating)

If you choose the second way, you’ll have to check if all mailboxes are synced and not failed.

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Open a file with its default application

Hey there !

A little tip I’ve just found, really usefull.

If you need to open a file through Powershell with the default application set up in Windows parameter, just use “Start-process” and the full path of your file

Start-Process "c:\temp\MyExcelFile.xlsx"

In this short example, this command will launch Excel and your file !

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Group-Object is magic !

I had to create a script that sort a whole csv, each line is an extract of a computer scan, one extract per day, and get only the last extract per computer AND per user.

Indeed, a user can use multiple computers, and several users can use the same computer, the extract result is not the same !

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Sort files by extension with total size

For several reasons, it could be awesome to sort a folder and sub by extension, with the associated size for each.

 

$results=Get-ChildItem -Path "y:\" -Recurse |
#Get only files
Where-Object { !$_.PSIsContainer } |
#Group by extension
Group-Object Extension |
#Get data
Select-Object @{n="Extension";e={$_.Name -replace '^\.'}}, @{n="Size (MB)";e={[math]::Round((($_.Group | Measure-Object Length -Sum).Sum / 1MB), 2)}}, Count
$results |Sort-Object "Size (MB)"|Export-csv "$WorkingDir\Results\$ResultFile" -NoTypeInformation

 

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