Nmo

The nmo attribute gives the number of molecular orbitals in the calculation. It is an integer and is typically equal to nbasis, but may be less than this if a linear dependency was identified between the basis functions.

Commands to get information on all orbitals

 * GAMESS-UK only usually prints information on the 5 lowest virtual orbitals. "FORMAT HIGH" should make it do this for all of the orbitals, although GAMESS-UK 7.0 has a bug that means that this only works for restricted calculations.
 * Jaguar - the first ten virtual orbitals are printed by default; in order to print more of them, use the ipvirt keyword in the input file, with ipvirt=-1 printing all virtual orbitals (see the manual for more information).