$ o2-sim -m FCT -e TGeant3 -g pythia8 -n 1000
Output: o2sim_HitsFCT.root
$ root.exe -q fctTracker.C+
Output: fcttracks.root
$ root.exe -b -q fctOccupancy.C+
Output: fctOccupancy.root
$ root.exe -q -b FCTTrackerChecker.C+
Output: Fittercheck_fcttracks.root