#getalluserinaSiteCollection
Add-PSSnapin microsoft.sharepoint.powershell -ErrorAction SilentlyContinue
$iissite = get-spwebapplication | where {$_.url -eq "http://www.yoursite.com/"}
$iissite
$header = "type,user,group,weburl,webname"
$header | out-file filename.txt 
foreach ($SiteCollection in $iissite.sites)
{
    write-host $SiteCollection -foregroundcolor Blue	
    foreach ($web in $SiteCollection.Allwebs)
    { 
         write-host "    " $web.url $web.name "users:" -foregroundcolor yellow
         # Write-host "        " $web.users | select name 
         foreach ($userw in $web.users)
         {
            #if ($userw -like "Domain\*")
            #{
				write-host "        " $userw -foregroundcolor white
				#$msg = ("{0},{1} user:{2}" -f $web.url,$web.name, $userw)
				$msg = ("RootUser,{0},-,{1},{2}" -f $userw, $web.url,$web.name) 
				$msg | out-file filename.txt -append
            #  }
           }
 
		 foreach ($group in $web.Groups)
		{
                    Write-host "        " $web.url $group.name: -foregroundcolor green
		     foreach ($user in $group.users)
             { 
				# if ($user -like "DOMAIN\*")
				 #{   
					  Write-host "            " $user -foregroundcolor white
					  #$msg = ("{0},{1},group:{2}, user:{3}" -f $web.url, $web.name, $group, $user)
					  $msg = ("GroupUser,{0},{1},{2},{3}" -f $user, $group, $web.url, $web.name)
					  $msg | out-file filename.txt -append
				 #}
             }
		}	
	}
 
}

 
#getalluserseverywhere
Add-PSSnapin microsoft.sharepoint.powershell -ErrorAction SilentlyContinue
$iissite = get-spwebapplication | where {$_.url -eq "http://www.yoursite.com/"}
$iissite
 
foreach ($SiteCollection in $iissite.sites)
{
    write-host $SiteCollection -foregroundcolor Blue	
    foreach ($web in $SiteCollection.Allwebs)
    { 
        write-host "    " $web.url $web.name "users:" -foregroundcolor yellow
        Write-host "        " $web.users | select name 
		 foreach ($group in $web.Groups)
		{
                     Write-host "        " $web.url $group.name: -foregroundcolor green
		     foreach ($user in $group.users)
                     { 
                         Write-host "            " $user -foregroundcolor white
                     }
		}	
	}
 
}

Add-PSSnapin microsoft.sharepoint.powershell -ErrorAction SilentlyContinue
 
#note here - if you remove the where statement, you can do a foreach statement that lets you loop though each IIS site you have
$iissite = get-spwebapplication | where {$_.url -eq "http://www.yourwebsite.com/"}
$iissite
foreach ($SiteCollection in $iissite.sites)
{
    write-host $SiteCollection -foregroundcolor Blue
    foreach ($oneweb in $SiteCollection.allwebs)
    {
	   write-host  $iissite.url $oneweb -foregroundcolor Green
	   #now this is is where we look at the lists
	   $lists = $oneweb.lists
       foreach ($list in $lists)
       {
          if($list.EnableVersioning -eq $false)
          {
              write-host  $iissite.url $oneweb"/"$list"/ is a not using versions" -foregroundcolor yellow
              #$list.Enableversioning = $true
              #$List.MajorVersionLimit = 3
              #$list.update()
          }
          else
          {
              Write-host  $iissite.url $oneweb"/"$list"/ has versions enabled! "
          }
       } 
	}
}

Add-PSSnapin microsoft.sharepoint.powershell -ErrorAction SilentlyContinue
$web = get-spweb "http://www.yoursharepointurl.com/sites/yoursite/"
$lists = $web.lists
foreach ($list in $lists)
{
    if($list.EnableVersioning -eq $false)
    {
         write-host $list.title "is a not using versions"
         $list.Enableversioning = $true
         $List.MajorVersionLimit = 5
         $list.update()
    }
    else
    {
         Write-host $list.title " is set for up to " $list.MajorVersionLimit "previous versions"
    }
}

New-spuser  “c:0(.s|true" -web http://www.mysharepointsite.com/ -permissionlevel "read"

 
 # this script enables a feature on every site collection on a given web app
 
 Add-PSSnapin microsoft.sharepoint.powershell -ErrorAction SilentlyContinue
 $webs =  get-spsite -webapplication "http://www.yoursharepointURL.com"
 $feature = "YourFeatureName" #this might not be what you expect it to be, best to do get-spfeature | Select displayname
 
  Foreach ($oneweb in $webs)
  {
    write-host $oneweb
    $siteFeature = get-spfeature -site $oneweb | Where {$_.displayname -eq $feature}
    if ($siteFeature -eq $null)
    {
      Write-Host "Activating Site level Features at $oneweb" -foregroundcolor Yellow
      Enable-SPFeature -Identity $Feature -URL $oneweb.URL -Confirm:$False
    }
    else
    {
      Write-Host "Feature $feature is already activated on $oneweb" -foregroundcolor green
    }
  }

# if you run from ISE and get a permissions error copy and paste everything to a new tab.
# or run get-executionpolicy (take note what it is) then run (as an administrator): set-executionpolicy unrestricted
#set theses two variables -
$ExportedRuleSetFile = get-content 'c:\PS\PRD_URLset.txt'
$URLtoFind = "/get/content/from/sharepoint.aspx"
Function FindAMatch($Rulefile, $URL)
{
	$table = New-Object system.Data.DataTable "RegExList"
	$col1 = New-Object system.Data.DataColumn Section,([string])
	$col2 = New-Object system.Data.DataColumn Name,([string])
	$col3 = New-Object system.Data.DataColumn RegEx,([string])
	$table.columns.add($col1)
	$table.columns.add($col2)
	$table.columns.add($col3)
 
	$row = $table.NewRow()
	$row.Section = "Section"
	$row.name = "Name"
	$row.RegEx = "Regex"
 
	foreach ($line in $Rulefile )
	{
		if ($line[0] -eq "[")
		{
			$table.Rows.add($row)
			$row = $table.NEwRow()
			$row.Section = $line
		}
		elseif ($line.substring(0,7) -eq "m_regex")
		{
			$row.RegEx = $line.substring(8)
		}
		elseif ($line.substring(0,7) -eq "m_name=")
		{
			$row.Name = $line.Substring(7)
		}
	}
	$table.Rows.add($row)
 
	write-host Note: this only searches SharePoint Rules
	# note the select statement is needed because many of the records don't have regex values
	foreach ($record in $table.select("name like 'SharePoint%'"))
	{
		if ($url -match $record.regex)
		{
			Write-host $url found in $record.name via regex matching $record.regex
		}
	}
} #end function
FindAMatch $ExportedRuleSetFile $URLtoFind