system_ls  ls
system_cd  cd
system_md  mkdir
system_edit gedit
system_del  rm
system_termination /
system_join  &&
system_mopac sh /home/aks45/Utilities/mopac7-1.15/run_mopac7
system_gnu  gnuplot
system_jmol  java -jar $EPSRbin/Jmol.jar
system_binaries $EPSRbin
system_bin_ext 
system_plot2d  map2d
system_plot3d  map3d_noaxes
system_plotato pgplotato
system_pgout /png
gnu_pointtype 6
gnu_pointsize 0.4

