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+# Geogame Log Analyzer
+
+## log data
+
+### set mtime of gpx files to the first date:
+
+```
+for i in */*; do touch -m -d "$(head -n 15 $i|grep time | head -n 1 |cut -d">" -f 3|cut -d"<" -f1)" $i; done
+for i in */; do touch -m -d "$(head -n 15 $i/*.gpx|grep time | head -n 1 |cut -d">" -f 3|cut -d"<" -f1)" $i; done
+```
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