We can also enable SharePoint List versioning using c#

using (SPSite spsite = new SPSite("http://win7/"))
{
SPWeb spweb = spsite.OpenWeb();
SPList list = spweb.Lists["CustomList"];
list.EnableVersioning = true;
list.Update();
}

Retrieve SPListItem versions using c#

using (SPSite spsite = new SPSite("http://win7/"))
{
SPWeb spweb = spsite.OpenWeb();
SPListItemCollection listitems = spweb.GetList("http://win7/Lists/CustomList").Items;

foreach (SPListItem listitem in listitems)
{
//listitem.Versions.RestoreByID(5);
foreach (SPListItemVersion versionItem in listitem.Versions)
{
Console.WriteLine("VersionId :" + versionItem.VersionId);
Console.WriteLine("VersionLabel :" + versionItem.VersionLabel);
Console.WriteLine("IsCurrentVersion :" + versionItem.IsCurrentVersion);
Console.WriteLine("ListItem.Title :" + versionItem.ListItem.Title);
Console.WriteLine("Created :" + versionItem.Created);
Console.WriteLine("CreatedBy :" + versionItem.CreatedBy);
Console.WriteLine("Level :" + versionItem.Level);
}
}
}

Retrieve SPListItem version changes using c#

using (SPSite spsite = new SPSite("http://win7/"))
{
SPWeb spweb = spsite.OpenWeb();
SPListItemCollection listitems = spweb.GetList("http://win7/Lists/CustomList").Items;

foreach (SPListItem listitem in listitems)
{
for (int i = 0; i < listitem.Versions.Count - 1; i++)
{
SPListItemVersion oldVersion = listitem.Versions[i];
SPListItemVersion latestVersion = listitem.Versions[i + 1];
foreach (SPField field in oldVersion.Fields)
{
if (field.ShowInVersionHistory == false)
{
continue;
}

if (latestVersion == null)
{
Console.WriteLine("  > {0} changed to \"{1}\"",
field.StaticName, oldVersion[field.StaticName]);
continue;
}

if (oldVersion[field.StaticName].Equals(latestVersion[field.StaticName]))
{
continue;
}

Console.WriteLine("  > {0} changed from \"{1}\" to \"{2}\"",
field.StaticName, latestVersion[field.StaticName], oldVersion[field.StaticName]);
}
}

}
}
Console.ReadLine();

DatePickerFrameUrl="<%$SPUrl:~sitecollection/_layouts/15/iframe.aspx %>"

<SharePoint:DateTimeControl ID="dtStartdate" runat="server"
DateOnly="true" DatePickerFrameUrl="<%
$SPUrl:~sitecollection/_layouts/15/iframe.aspx %>" />

Changing the logo is a basic  when it comes to branding SharePoint 2013 sites.

If you have more site collection in SharePoint ,hundred of site collection with subsites , go with sharepoint Powershell script

Get-SPWebApplication "http://sharepoint.crescent.com" | Get-SPSite -Limit "All" | Get-SPWeb -Limit "All" |  foreach { $_.SiteLogoUrl=""; $_.update(); Write-host "Changing Logo for:"$_.Url;  }

Add-PSSnapin Microsoft.SharePoint.PowerShell -erroraction SilentlyContinue 

$SiteURL = "http://Your-Site-Collection-URL" 
#Get the site collection
$Site = Get-SPSite $SiteURL #Iterate through each site in the site collection
 foreach($web in $Site.AllWebs)
 {
 #sharepoint change logo programmatically 
$web.SiteLogoUrl = "/relative-path-logo-file" 
$web.Update() 
}

• SPListItem.Update() is used to update all the values in SharePoint List Item including Modified Date, Modified By, Version fields
• 
  
• SPListItem.SystemUpdate() is used to update the values of the list item without modifying the Modified Date, Modified By and Version fields.
• 
  
• SPListItem.Update() . Event Receiver is fired in case if listitemupdated,listitemupdating  event is associated. 
• SPListItem.SystemUpdate() Event Receiver won't be fired in case if list item updated, listitemupdating  event is associated

Hope It will works fine. 

# Add the snapin, in case it's not already installed
Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue

$ver = (Get-PSSnapin microsoft.sharepoint.powershell).Version.Major
If ($ver -eq "15" )
    {
        Write-Output "SharePoint 2013 is installed"
        }
    elseif ($ver -eq "14")
    {
        Write-Output "SharePoint 2010 is installed"
        }
        else
        {
            Write-Output "Could not determine version of SharePoint"
            } 

$site = new-object Microsoft.SharePoint.SPSite("http://<Site URL>") #Change site URL#
    $web = $site.openweb()
    $list = $web.Lists["<List Name>"] #Get Field Details for specified list
   
    Write-Host "List Name: " $list.Title  ##Print List title
    Write-Host "------------------------------------------------------"
    Write-Host "Field Name | Field Title "
    Write-Host "------------------------------------------------------"        
   
    foreach ($field in $list.Fields) #Get all views in lists
    {
        Write-Host $field.Title " | " $field.Type -ForegroundColor Green #Write out each field (column)                        
       
    }  
    Write-Host "------------------------------------------------------"
    Write-Host " "

    $web.Dispose()
    $site.Dispose()

In this article, we retrieved the particular list properties in SharePoint Site.

#Declare the variable for below functions
$SiteCollectionURL="https://sharepointonline.sharepoint.com/sites/mysite"
$listName="Project list"


function GetSPFieldDetailsForList($SiteCollectionURL, $listName)
{
    $site = new-object Microsoft.SharePoint.SPSite($SiteCollectionURL) #Change site URL#
    $web = $site.openweb()
    $list = $web.Lists[$listName] #Get Field Details for specified list
   
    foreach ($view in $list.Views) #Get all views in lists
    {
        $spView = $web.GetViewFromUrl($view.Url) #Grab views URL
        Write-Host "List Name: " $list.Title  ##Print List title
        Write-Host "------------------------------------------------------"
        Write-Host "Field Name | Field Title "
        Write-Host "------------------------------------------------------"
        foreach ($spField in $spView.ViewFields) #Loop through all view URLs and get Fields (columns)
        {
            foreach ($field in $list.Fields) #Get all fields in lists
            {
                if($spField -eq $field.Title) #if field in lists equals field in views
                {
                    Write-Host $spField " | " $field.Type -ForegroundColor Green #Write out each field (column)                      
                }
            }
        }
        Write-Host "------------------------------------------------------"
        Write-Host " "
    }  
    $web.Dispose()
    $site.Dispose()
}

function GetSPFieldDetailsForAllLists($SiteCollectionURL)
{
    $site = new-object Microsoft.SharePoint.SPSite($SiteCollectionURL) #Change site URL#
    $web = $site.openweb()
   
    foreach ($list in $web.Lists) #Get all list in web
    {
        foreach ($view in $list.Views) #Get all views in lists
        {
            $spView = $web.GetViewFromUrl($view.Url) #Grab views URL
            Write-Host "List Name: " $list.Title  ##Print List title
            Write-Host "------------------------------------------------------"
            Write-Host "Field Name | Field Title " -ForegroundColor DarkGreen
            Write-Host "------------------------------------------------------"
            foreach ($spField in $spView.ViewFields) #Loop through all view URLs and get Fields (columns)
            {
                foreach ($field in $list.Fields) #Get all fields in lists
                {
                    if($spField -eq $field.Title) #if field in lists equals field in views
                        {
                            Write-Host $spField " | " $field.Type -ForegroundColor Green #Write out each field (column)                        
                        }
                }
            }
            Write-Host "------------------------------------------------------"
            Write-Host " "
        }
    }
    $web.Dispose()
    $site.Dispose()
}

Get-OfficeWebAppsFarm

Powershell Script
$owaFarm = Get-OfficeWebAppsFarm;
$owaFarm .OpenFromUrlEnabled = $true;

Type Script:

<script type="text/javascript">
   LoadSodByKey("js/jquery-1.9.0.min.js", function () {
       console.log("Hello world!")
   });
</script>

Type Script
ExecuteOrDelayUntilScriptLoaded(CustomCIMOpt, "core.js");

We have added a PreSaveAction JavaScript function to the page.

Return a True or False to allow the save to continue.
Example:

<script type="text/javascript">
 function PreSaveAction() {
  // pre save action alert message
  alert('form has been submitted!');
  return true;  // return true to continue with the save 
       // return false;          // or return false to cancel the save
 } 
</script>

In SharePoint 2013 ,

 Copy-SPSite command :


Copy-SPSite Source Site URL [-DestinationDatabase Destination DB] -TargetUrl Target Site URL

Get sites and content DB details using following power shell command

$rootSite=New-Object Microsoft.SharePoint.SPSite("http://weburl")
$spWebApp = $rootSite.WebApplication 
foreach($site in $spWebApp.Sites) {
    
    write-output "$($site.RootWeb.Url) - $($site.ContentDatabase)"     
  
    $site.Dispose() 
} 

var managerName;
$().SPServices({
operation: "GetUserProfileByName",
async: false,
AccountName: $().SPServices.SPGetCurrentUser(),
completefunc: function (xData, Status) {
$(xData.responseXML).find("PropertyData > Name:contains('Manager')").each(function() {
managerName = $(this).parent().find("Values").text();
alert(managerName);
});
}
});

Server Object Model:

using(SPSite osite = new SPSite(strURL))
{      
   using(SPWeb oweb = osite.OpenWeb())
   {
      SPList list = oweb.Lists["Workplan"];
string listid=list.ID.ToString();
     string listtitle=list.Title.ToString();
    }          
}

Script:
<script language="javascript" type="text/javascript">

  $(function() {

getcount();
});
function getcount()
{  
    var dataCount=0;
    var queryText = "<Query><Where><Eq><FieldRef Name='Title'/><Value Type='Text'>Apple</Value></Eq></Where></Query>";
 
    $().SPServices({

        operation: "GetListItems",
        listName: "Furits",
        async: false,
        CAMLQuery: queryText,
        completefunc: function (xData, status) {          
            dataCount= $(xData.responseXML.xml).find("rs\\:data, data").attr("ItemCount");        
//In dataCount  variable ,We will get list items Count
            $("#txtcount").val(dataCount);

        }
    });
           }

</script>

HTML
<input type="text" id="txtcount"/>
 <a onclick="javascript:getcount();">Click Here</a>

=TEXT([Date],"mm")   =>       date is 1-Jun-2015

Result:
06
=TEXT([Date],"mmmm")  =>    date is 1-Jun-2015
Result:
January

=TEXT([Date],"mmm")   =>    date is 1-Jun-2015

Result:
Jan

=TEXT([Date],"yyyy")   =>    date is 1-Jun-2015

Result:

2015


=TEXT([Date],"dd")   =>    date is 1-Jun-2015

Result:

01