Convert TCX (Garmin Edge) to GPX with gpsbabel

tcx2gpx

#!/bin/bash
# Convert TCX (Garmin Edge) to GPX with gpsbabel
# Usage: tcx2gpx tcx-file-name [-o gpx-file-name] -max 999
#   -o   -- gpx-file-name, if not given, computed from tcx-file-name (it is assumed YYYY-MM-DD*.tcx)
#   -max -- produce simplified track with maximum 999 trkpoints

#
SIMPLIFY=""

if [ $# -eq 0 ]; then
   echo "*** tcx2gpx tcx-file -o [gpx-file] -max 999 ***";
   echo "*** If gpx-file is not given script assumes that tcx-file is as YYYY-MM-DD*.tcx ***"
   echo "*** and constructs gpx-file name as YYYY-MM-DD.gpx ***"
   exit 1;
fi

while test $# -gt 0; do
  case "$1" in

    -max)  shift; COUNT="$1";;
    -max*) COUNT="`echo :$1 | sed 's/^:-max//'`";;
    -o)  shift; OUT="$1";;
    -o*) OUT="`echo :$1 | sed 's/^:-o//'`";;
    *)   FILE="$1";;
  esac
  shift
done

if [ -z "$OUT" ] ; then
   gpxfile=`echo $FILE | cut -b 1-4,6-7,9-10`.gpx;
else
   gpxfile="$OUT"
fi

if [ "$COUNT" != "" ] ; then SIMPLIFY="-x simplify,count=$COUNT" ; fi

if [ -e "$gpxfile" ] ; then
   echo "FILE $gpxfile exists! REMOVE IT MANUALLY"
else
   gpsbabel -i gtrnctr -f $FILE $SIMPLIFY -o gpx -F $gpxfile
fi