PowerShell to enable/amend versioning on all library types

Question

I need a PS script to either enable versioning to 5 major versions or if versioning is already enabled for any amount of versions etc it will change it back down to 5 versions so the setting of 5 is the same across all sites.  It also
needs to run for the web app and any site collections and sub sites beneath it.  If possible it should change this settings for all types of libraries e.g. document, lists, calendars, tasks, image libraries etc  thanks in advance 

Answer 1

Hi,
The following blogs for your reference:
Use PowerShell to Enable Versions in All Document Libraries in All Subsites
http://blogs.c5insight.com/Home/entryid/493/Use-PowerShell-to-Enable-Versions-in-All-Document-Libraries-in-All-Subsites
PowerShell Enable Versioning in all Site Collection Lists & Libraries
http://yalla.itgroove.net/2013/07/04/powershell-enable-versioning-in-all-site-collection-lists-libraries/
The PowerShell script like this:
$siteURL = "http://sharepoint/"
$site = Get-SPSite($siteURL)
foreach($web in $site.AllWebs) {
foreach ($list in $web.Lists){
if($list.BaseType -eq "DocumentLibrary") {
$list.EnableMinorVersions = $true
$list.MajorVersionLimit = 5
$list.MajorWithMinorVersionsLimit = 5
$list.Update()
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