Why New-SPConfigurationDatabase and other commands are not recognized?

Question

Hello Community
    In Sharepoint 2013 Server I am an Administrator and in
SQL Server 2012 I am a securityadmin, db_owner and sysadmin.  In the
I am also a domain user and domain administrator.
    Below is what is returned from the Powershell command I entered:
 PS C:\> $PSVersionTable.psversion
 Major  Minor  Build  Revision
 3      0      -1     -1
    I am running WS2012 and the prerequisites for Sharepoint 2013 Server have been installed.
    However when I run the Powershell script to configure the
New-SharepointFarm the command fails with all of the Powershell
commands returning the following error message:
PS C:\scripts> .\New-SharePointFarm.ps1
Configure Database
New-SPConfigurationDatabase : The term 'New-SPConfigurationDatabase' is not recognized as the name of a cmdlet,
function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the
path is correct and try again.
At C:\scripts\New-SharePointFarm.ps1:20 char:1
+ New-SPConfigurationDatabase -DatabaseName $ConfigDB -DatabaseServer $DatabaseSer ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (New-SPConfigurationDatabase:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException
    As you can see the error says: "The term 'New-SPConfigurationDatabase' is not recognized as the name of a cmdlet"
but as you can see $PSVersionTable.psversion shows the Powershell version I am using so my question is:
    How come when I run commands like "New-SPConfigurationDatabase" they are not recognized?
    Thank you
    Shabeaut

Answer 1

Hello Alex
    I should have included that while troubleshooting I did that too.
The results of "Add-PSSnapin Microsoft.SharePoint.PowerShell" were:
        Add-PSSnapin : No snap-ins have been registered for Windows PowerShell version 3
    and if I try to run  .\New-SharePointFarm.ps1 again I get the same error:
        The term 'New-SPConfigurationDatabase' is not recognized as the name of a cmdlet,
    Shabeaut