PSModulePath environment variable list our all installation path for PS modules.

Possible installation paths :

• $PSHome\Modules (%Windir%\System32\WindowsPowerShell\v1.0\Modules)
• $Home\Documents\WindowsPowerShell\Modules (%UserProfile%\Documents\WindowsPowerShell\Modules)
• $Env:ProgramFiles\WindowsPowerShell\Modules (%ProgramFiles%\WindowsPowerShell\Modules)

Commands available in current session.

get-command

Set-ExecutionPolicy command enables you to control the level of security surrounding PowerShell scripts.

• Restricted: This is the default security level which blocks PowerShell scripts from running. In this security level, you can only enter commands interactively.
• All Signed: This security level allows scripts to run only if they are signed by a trustworthy publisher.
• Remote Signed: In this security level, any PowerShell scripts that were created locally are permitted to run. Scripts created remotely are permitted to run only if they’ve been signed by a reputable publisher.
• Unrestricted: As its name suggests, the unrestricted security level permits all scripts to run by removing all restrictions from the execution policy.

Set-ExecutionPolicy
Get-ExecutionPolicy

To know what services are installed on the system.

Get-Service | Where-Object {$_.status -eq "stopped"}

Quick list of currently running processes

Get-Process
Stop-Process -processname notepad
Stop-Process -processname note*

To filter out from list of object.

Get-Service | Where-Object {$_.Status -eq 'Running'}

Iterate over each object

Get-Process | ForEach-Object {Write-Host $_.name -foregroundcolor cyan}

$ourObject = New-Object -TypeName psobject

$ourObject | Add-Member -MemberType NoteProperty -Name ComputerName -Value $computerInfo.Name