UserName showing up as DomainName\UserName instead of Full Name in SharePoint

UserName showing up as DomainName\UserName instead of Full/Display Name in SharePoint.

Solution 1 : 

• Set-SPUser -Identity ‘scs\shiva4224’ -DisplayName ‘Shivashankaran S C’ –Web http://algorithm
• Get-SPUser –Web http://algorithm | Set-SPUser –SyncFromAD

FOR ALL USERS : Get-SPUser –Web http://algorithm | Set-SPUser –SyncFromAD

Solution 2 :

 1. Opened Central Administration on SharePoint 2010, logged in as the Administrator.

2. Clicked into "Application Management," then "Manage Service Applications."

3. Scrolled down to "User Profile Service Application," and clicked to open that.

4. Clicked "Manage User Profiles" under the main People heading.

5. Searched for the account I was looking for - "shiva" - and made the changes like first name, last name, and full name were showing.

6. Saved - and now I'm hoping for the best. With SharePoint 2010 it took up to 15 minutes without IIS Restart to become available; we'll see with SharePoint 2013.