This tool is a little converter for gpx data. Only the track and the name of the track are extracted in the current version. Compiling: just type in "make" Using: java Gpx2Secondo *.gpx >Tracesobj will convert all gpx files into a single relation. If there are more than 1000 files to convert (the usual bach cannot handle more than 1000 arguments), just use a pipe to convert the files: find -iname "*.gpx" | java Gpx2Secondo > Tracesobj