Get all document libraries in a site collection

Getlistofdiclib.ps1

#Load powershell snapin
Add-PSSnapin "Microsoft.SharePoint.PowerShell"
#Get site collection details
$s = Get-SPSite http://spjourney
#Get all web sites in the site collections
$wc = $s.AllWebs
foreach($w in $wc)
{
#loopthrouh the lists and libraries in the site
foreach($l in $w.Lists)
  {
  	#Check for only document libraries
		if($l.BaseTemplate -eq "DocumentLibrary")
		{
			Write-Host $l.Title"(Web: "$w.Title")"
		}
	}
}