xzy@xzy> cat ./module.sh
#! /bin/sh
eval `/opt/modules/3.2.6.7/bin/modulecmd bash $*`
xzy@xzy> ./module.sh add gromacs
xzy@xzy> grompp -h
If 'grompp' is not a typo you can run the following command to lookup the package that contains the binary:
    command-not-found grompp
-bash: grompp: command not found
xzy@xzy> module add gromacs
xzy@xzy> grompp -h
                         :-)  G  R  O  M  A  C  S  (-:

        Getting the Right Output Means no Artefacts in Calculating Stuff

                  :-)  VERSION 4.6-GPU-dev-20120501-ec56c  (-: