SAP Role creation using script

Hi,

we are creating n number of roles with having around 350+ objects in each individual role. It will quite take a long time if we create it manually. Could any one please help by letting us know if the role creation is possible by using any alternative method like secatt or some ABAP program . If yes then how (as a BASIS guy, my knowledge is limited to SAP Security part).

Regards,

Ankit