Permeation through nantubes

GROMACS version:
GROMACS modification: Yes/No
Here post your question Anyone can provide me a script to calculate the permeation through the nanotube in the lipid bilayer. The script available here does’nt work for GROMACS trajectories.
https://www.ks.uiuc.edu/Training/Tutorials/science/nanotubes/files/