Hi Yang,
Is this problem specific to @SUMA_Make_Spec_FS? i.e. do
programs like afni, to3d and 3dVol2Surf work?
If that is the case, then perhaps those files are simply not
executable. So you might go to that directory, and type
"chmod a+x *".
As a side note, being in the same directory doesn't imply
that you can just type the program name to run it. It still
depends on your $PATH (specifically, whether the '.'
directory is in it). If you want to run a program out of the
current working directory, then you should run it with './',
as in "./@SUMA_Make_Spec_FS".
- rick