Active Directory

To get a list of the FSMO Role holders for a Single Domain.

Get-ADDomain | Select-Object DistinguishedName, SchemaMaster, DomainNamingMaster, InfrastructureMaster, PDCEmulator, RIDMaster

To get a list of the FSMO Role holders in a Forest.

Get-ADForest | Select-Object Name,SchemaMaster, DomainNamingMaster,InfrastructureMaster, PDCEmulator, RIDMasterall

To get a nicely formatted list with all the Domain Controllers and who owns which particular role.

Get-ADDomainController -Filter * | Select-Object Name, Domain, Forest, OperationMasterRoles | Where-Object {$_.OperationMasterRoles}

Create a new AD user.

$ServerName="newsys"
$DC="ads01.example.com"
$OU="OU=SERVERS,DC=example,DC=com"
New-ADComputer -Name $ServerName -SamAccountName $ServerName -Path $OU  -Description "Apache Win Development"  -Server $DC -Enabled $True