./mkTrackDb-ATAC-07feb2025.pl
./mkTrackDb-K27ac-07feb2025.pl
./mkTrackDb-RNA-02jun2025.pl
./mkTrackDb-K4me1-06feb2026.pl 

cat trackDb.ATAC01.txt trackDb.HMOD01.txt trackDb.HMOD02.txt trackDb.RNA01.txt > trackDb.txt