Did you read page 10 in efg2.pdf? The EFG information is outputted in case.scf0 and case.output2:

/The EFG is calculated in the local coordinate system, and it is printed (in case.scf0 and// //case.output2) in this one as well as in its PAS (principal axis system) with respect to//
//the local coordinate system./

On page 11 in efg2.pdf, it shows the following from case.scf0:

:EFG001:         EFG = 3.74472 *10**21 V / m**2
                        V20 TOT/SRF= 3.24303 0.00307
                        V22 TOT/SRF= 0.00000 0.00000
                        V22M TOT/SRF= 0.00000 0.00000
                        V21 TOT/SRF= 0.00000 0.00000
                        V21M TOT/SRF= 0.00000 0.00000
-1.87236   0.00000 0.00000     -1.87236   0.00000 0.00000
  0.00000 -1.87236 0.00000       0.00000 -1.87236 0.00000
  0.00000   0.00000 3.74472       0.00000  0.00000 3.74472

Under :EFGxxx, you can see that there are two 3 x 3 matrices. Vxx, Vyy, and Vzz should be the values along the diagonal of these matrices. In the 3x3 matrix on the right side, it looks like Vxx = -1.87236, Vyy = -1.87236, and Vzz = 3.74472 in the principal axis system.

If you searched the mailing list archive, you have probably already seen what appears to be an asymmetry parameter (eta) value next to :ETAxxx that appears below :EFGxxx [ https://www.mail-archive.com/wien%40zeus.theochem.tuwien.ac.at/msg01213.html ].

On 7/4/2015 12:03 PM, Muhammad Sajjad wrote:
Dear Users
Are the values of asymmetry parameter (eta) or Vxx, Vyy, Vzz printed in some file? I found VZZ001 is printed in case.scf file like
:VZZ001: EFG INSIDE SPHERE   1 =     3.735466      UP TO R =   2.50000

I am trying to understandhttp://www.wien2k.at/reg_user/faq/efg2.pdf
  but facing some problems to understand it very well.

M. Sajjad
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