To assign files stored on hard disk to variable names in script, or
To give file names to variables which are stored in the script with report
binding MapA=a.map; # input map MapC=c.map; # outuput map areamap mask.map; timer 1 10 1; initial MapB=5*MapA; report MapC=MapB/10; dynamic MapB=MapB+MapC; MapD=MapB+1;