REM create a file with the tracks
REM ATENTION, the programs gawk.exe and cat.exe must be in the Windows path or in the same directory as the data files.

REM Do not forget to replace the extension to the appropriate to files in use. This example is made for the mb59 format.

dir /B *.mb59 | gawk "{printf(\"echo ^^^> ^^^%s ^^^-W1,%d/%d/%d ^> %s.xy\nmblist -OXY -I %s ^| gmtsimplify -T50e ^>^> %s.xy\n\",$1,rand()*255,rand()*255,rand()*255,$1,$1,$1)}" > trac.bat

REM Next run the "trac.bat" batch file and after do  
cat *.xy > traca.dat