We have to understand the minimum required permissions. Prior to this, run Windows PowerShell for SharePoint cmdlet.

The users in the Farm administrators group or being the Farm Administrator to the SharePoint farm is not sufficient permission to run SharePoint cmdlets.

If you don't have the required permissions, you might receive the the error message- "The local farm is not accessible."

Load SharePoint assembly given below.
  1. Add-PSSnapin Microsoft.SharePoint.PowerShell –ErrorAction SilentlyContinue
  3. ##########
  5. #Script: Below Script will create a new group ion sharepoint
  6. #Author: Gowtham Rajamanickam
  7. #Date :15-03-2017
  9. ##########
  10. function CreateGroup
  11. {
  12. param ($URL, $GroupName, $PermissionLevel, $GroupDescription)
  14. try
  15. {
  16. #Retrive the Web
  17. $web = Get-SPWeb -Identity $URL
  19. #Check if web Exists already
  20. if($web -ne $null)
  21. {
  22. #Check if Group already exists
  23. if ($web.SiteGroups[$GroupName] -ne $null)
  24. {
  25. write-Host "Group $GroupName Already exists !" -ForegroundColor Red
  26. }
  27. else
  28. {
  30. $Web.SiteGroups.Add($GroupName, $web.Site.Owner, $web.Site.Owner, $GroupDescription)
  32. $Group = $web.SiteGroups[$groupName]
  34. $roleAssignment = new-object Microsoft.SharePoint.SPRoleAssignment($group)
  36. $roleDefinition = $web.Site.RootWeb.RoleDefinitions[$permissionLevel]
  38. $roleAssignment.RoleDefinitionBindings.Add($roleDefinition)
  40. $web.RoleAssignments.Add($roleAssignment)
  42. $web.Update()
  44. write-Host "Group: $GroupName created successfully!" -ForegroundColor Green
  45. }
  47. $web.Dispose()
  48. }
  49. }
  50. catch [System.Exception]
  51. {
  52. write-host $_.Exception.ToString() -ForegroundColor Red
  53. }
  54. }
  56. #Call the function
  57. CreateGroup "http://gowthamr.sharepoint.com" "TutorialReaders" "Read" "Tutorial Group for Readers"
Reference
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