PowerShell is an awesome scripting platform because we don’t have to write tonnes of code, We can get things done with just a line of code.

Get all Domain Controllers in a Forest

(Get-ADForest).Domains | % { Get-addomaincontroller -filter * -server $_  | select Hostname }

Find all Server with Windows Server 2016 operating system

Get-AdComputer -filter { OperatingSystem -like "*2016*" } -Server "domainname.com" -Properties * | select Name, OperatingSystem

Find whether security patch is installed in a list of computers

Get-Content "D:\Scripts\hostnames.txt" | % { Get-HotFix -Id KB4073543 -ComputerName $_ }

We can combine this with the above 2 one-liners than using a text file.

Restart a remote computer

Restart-Computer -ComputerName "PCName" -Force

Ping all IP’s in a network

1..254 | % {Test-Connection "192.168.1.$_" -Count 1 -ErrorAction SilentlyContinue}

This will ping the whole range – 254

Kill process

Get-Process notepad | Stop-Process

Find the active logged on user in a remote PC

Get-WmiObject -ClassName win32_computersystem -ComputerName "PCName" | select UserName

Get ‘local administrators’ group members from a remote computer

Invoke-Command -ComputerName "computerName1","ComputerName2" -ScriptBlock { Get-LocalGroupMember -Group Administrators}

Hope this will be helpful.

Thank you