STSADM to Windows PowerShell equivalent mapping

This article lists Stsadm operations and their equivalent Windows PowerShell cmdlets. Where there is no one-to-one mapping between the operations and cmdlets, the table lists the specific Windows PowerShell parameters you must use to get the same functionality.

Stsadm operation	Windows PowerShell cmdlet
Activatefeature	Enable-SPFeature
Addalternatedomain	New-SPAlternateUrl
Addcontentdb	Mount-SPContentDatabase New-SPContentDatabase
Addpath	New-SPManagedPath
Addpermissionpolicy	None
Addsolution	Add-SPSolution
Addtemplate	Install-SPWebTemplate
Adduser	New-SPUser
Addwppack	Install-SPWebPartPack
Addzoneurl	New-SPAlternateUrl
Authentication	Set-SPWebApplication Use the AuthenticationMethod or AuthenticationProvider parameters.
Backup	Backup-SPConfigurationDatabase Backup-SPFarm Backup-SPSite
Backuphistory	Get-SPBackupHistory
Binddrservice	None
Blockedfilelist	None
Canceldeployment	None
Changepermissionpolicy	None
Copyappbincontent	None
Createadminvs	New-SPCentralAdministration
Creategroup	None
Createsite	New-SPSite
Createsiteinnewdb	New-SPSite Use the ContentDatabase parameter. New-SPContentDatabase
Createweb	New-SPWeb
Databaserepair	None
Deactivatefeature	Disable-SPFeature
Deleteadminvs	None
Deletealternatedomain	Remove-SPAlternateUrl
Deleteconfigdb	Remove-SPConfigurationDatabase
Deletecontentdb	Dismount-SPContentDatabase
Deletegroup	None
Deletepath	Remove-SPManagedPath
Deletepermissionpolicy	None
Deletesite	Remove-SPSite
Deletesolution	Remove-SPSolution
Deletetemplate	Uninstall-SPWebTemplate
Deleteuser	Remove-SPUser
Deleteweb	Remove-SPWeb
Deletewppack	Uninstall-SPWebPartPack
Deletezoneurl	Remove-SPAlternateUrl
Deploysolution	Install-SPSolution
Deploywppack	Install-SPWebPartPack
Disablessc	None
Displaysolution	Get-SPSolution
Email	None
Enablessc	None
Enumalternatedomains	Get-SPAlternateURL
Enumcontentdbs	Get-SPContentDatabase
Enumdeployments	None
Enumgroups	None
Enumroles	None
Enumservices	Get-SPServiceInstance
Enumsites	Get-SPSiteAdministration (To run this cmdlet, you must be a member of the Farm Administrators group.) Get-SPSite (To run this cmdlet, you must be a local administrator on the computer where SharePoint 2010 Products is installed.)
Enumsolutions	Get-SPSolution
Enumsubwebs	Get-SPWeb
Enumtemplates	Get-SPWebTemplate
Enumusers	Get-SPUser
Enumwppacks	Get-SPWebPartPack
Enumzoneurls	Get-SPAlternateURL
Execadmsvcjobs	Start-SPAdminJob
Export	Export-SPWeb
Extendvs	New-SPWebApplication
Extendvsinwebfarm	New-SPWebApplicationExtension
Forcedeletelist	None
Getadminport	Get-SPWebApplication Use the following syntax: Get-SPWebApplication -IncludeCentralAdministration | ? {$_.IsAdministrationWebApplication -eq $true}
Getproperty	Get-SPFarmConfig Get-SPTimerJob Disable-SPTimerJob Enable-SPTimerJob Set-SPTimerJob Start-SPTimerJob
Getsitelock	Get-SPSiteAdministration
Geturlzone	Get-SPAlternateURL
Import	Import-SPWeb
Installfeature	Install-SPFeature
Listlogginglevels	Get-SPLogLevel
Localupgradestatus	None
Managepermissionpolicylevel	None
Mergecontentdbs	Move-SPSite
Migrateuser	Move-SPUser
Provisionservice	Start-SPServiceInstance
Refreshdms	None
Refreshsitedms	None
Registerwsswriter	None
Removedrservice	None
Removesolutiondeploymentlock	None
Renameserver	Rename-SPServer
Renamesite	Set-SPSite Use the Url parameter.
Renameweb	Set-SPWeb Use the RelativeUrl parameter.
Restore	Restore-SPFarm Restore-SPSite
Retractsolution	Uninstall-SPSolution
Retractwppack	None
Scanforfeatures	Install-SPFeature Use the Scanforfeatures parameter.
Setadminport	Set-SPCentralAdministration
Setapppassword	None
Setconfigdb	Connect-SPConfigurationDatabase
Setlogginglevel	Set-SPLogLevel
Setproperty	Set-SPFarmConfig Get-SPTimerJob Disable-SPTimerJob Enable-SPTimerJob Set-SPTimerJob Start-SPTimerJob
Setsitelock	Set-SPSiteAdministration Use the LockState parameter.
Setworkflowconfig	Set-SPWorkflowConfig
Siteowner	Set-SPSiteAdministration
Spsearch	Get-SPSearchService Set-SPSearchService Get-SPSearchServiceInstance Set-SPSearchServiceInstance
Spsearchdiacriticsensitive	None
Syncsolution	Install-SPSolution Use the Synchronize parameter.
Unextendvs	Remove-SPWebApplication
Uninstallfeature	Uninstall-SPFeature
Unregisterwsswriter	None
Updateaccountpassword	Set-SPManagedAccount
Updatealerttemplates	None
Updatefarmcredentials	None
Upgrade	None
Upgradesolution	Update-SPSolution
Upgradetargetwebapplication	None
Userrole	Get-SPUser Move-SPUser New-SPUser Remove-SPUser Set-SPUser

TECHNET - stsadm to Windows PowerShell mapping (SharePoint Foundation 2010)
http://technet.microsoft.com/en-us/library/ff621081.aspx