In the supplied version of DL_POLY_2 , this sub-directory contains only a few macros for copying and storing data from and to the data sub-directory and for submitting programs for execution. (These are decribed in section 7.1.2.) However when a DL_POLY_2 program is assembled using its makefile, it will be placed in this sub-directory and will subsequently be executed from here. The output from the job will also appear here, so users will find it convenient to use this sub-directory if they wish to use DL_POLY_2 as intended. (The experienced user is not absolutely required to use DL_POLY_2 this way however.)