To calculate the segmentation & thickness outputs from freesurfer you will need to run two commands: asegstats2table & aparcstats2table.

1)to run asegstats2table on qsub.loni.ucla.edu:

asegstats2table --subjects sub1 sub2 sub3 --meas volume --t final_aseg.txt

2)to run aparcstats2table on qsub.loni.ucla.edu:

A) aparcstats2table --subjects sub1 sub2 sub3 --hemi lh --meas thickness --t final_LH_aparc.txt

B) aparcstats2table --subjects sub1 sub2 sub3 --hemi rh --meas thickness --t final_RH_aparc.txt