#!/bin/csh
head -n -3 DAWN_DAWN_999_999_201706101810_201706101917.kml > DAWN_20170610.kml
tail -n +49 DAWN_DAWN_999_999_201706101919_201706102014.kml | head -n -3 - > test1
tail -n +49 DAWN_DAWN_999_999_201706102014_201706102122.kml | head -n -3 - > test2
tail -n +49 DAWN_DAWN_999_999_201706102123_201706102230.kml | head -n -3 - > test3
tail -n +49 DAWN_DAWN_999_999_201706102231_201706102311.kml > test4
cat test1 >> DAWN_20170610.kml
cat test2 >> DAWN_20170610.kml
cat test3 >> DAWN_20170610.kml
cat test4 >> DAWN_20170610.kml
rm test*