// Instalacia Athena1207 po prvy raz:
mkdir athena1207
cd athena1207
// copy requirements file to athena1207: 
cp /afs/cern.ch/user/m/melo/public/requirements
source /afs/cern.ch/sw/contrib/CMT/v1r20p20070208/mgr/setup.sh
cmt config
source setup.sh -tag=12.0.7,setup
get_files -jo PythiatoAtlfasttoCBNT.py (+dalsie, na ktore sa odvolava tento
                                       subor, ak chces, ale nie je to nutne)
// zedituj takto: /afs/cern.ch/user/m/melo/public/PythiatoAtlfasttoCBNT.py
// resp. cp /afs/cern.ch/user/m/melo/public/PythiatoAtlfasttoCBNT.py ./

// contents of requirements file in ~/athena1207/ directory:
//  set CMTSITE CERN
//  set   SITEROOT /afs/cern.ch
//  macro ATLAS_DIST_AREA ${SITEROOT}/atlas/software/dist
//  apply_tag oneTest
//  macro ATLAS_TEST_AREA ${PWD}
//  use AtlasLogin AtlasLogin-* $(ATLAS_DIST_AREA)

// work.sh file (when I want to run athena next time after 1st installation) 
       cd athena1207
       source setup.sh -tag=12.0.7,setup

mkdir ~/athena1207/run
// files in ~/athena1207/run directory:
// PythiatoAtlfasttoCBNT.py     (1.cast byvaleho AtlfastWWtt.py)
// Atlfast_RunPythia.py         (2.cast byvaleho AtlfastWWtt.py) 
// Atlfast_MakeCBNT.py
// Atlfast_ConfigAlgs_NoFastShower.py (byvaly AtlfastStandardOptions.py)
// inparmCompHep.dat (edituj pocet eventov a meno .PEV suboru)
// Mixed-4.4.3.PEV    (vygenerovane s CompHEP-4.4.3)
// atlfast.root (vystup prikazu athena PythiatoAtlfasttoCBNT.py)
mv PythiatoAtlfasttoCBNT.py run/
cd run
cp /afs/cern.ch/user/m/melo/public/inparmCompHep.dat ./
cp /afs/cern.ch/user/m/melo/public/Mixed-4.4.3.PEV ./
cp /afs/cern.ch/user/m/melo/public/Atlfast_RunPythia.py ./
cp /afs/cern.ch/user/m/melo/public/Atlfast_MakeCBNT.py ./
get_files -jo Atlfast_ConfigAlgs_NoFastShower.py
// edituj aj Atlfast_RunPythia.py (instrukcie pre Pythiu)

// Rozpadaj eventy v Pythiii a dopln detektorove efekty s Atlfast
// vystup posli do atlfast.root
athena PythiatoAtlfasttoCBNT.py > log

// files in /run/analysis/:
//IVAN.h  (byvaly analysis1.h)
//IVAN.C  (byvaly analysis1.C)
//run.C   (byvaly launch1.C)
//atlfast.root (vstup pre rekonstrukciu)
//analysis1.root (vysledok rekonstrukcie)
mkdir run/analysis
cd analysis
cp /afs/cern.ch/user/m/melo/public/IVAN.h ./
cp /afs/cern.ch/user/m/melo/public/IVAN.C ./
cp /afs/cern.ch/user/m/melo/public/run.C ./
cp ../atlfast.root ./

// Rekonstruuj eventy z ntuples ulozenych v atlfast.root
// vystup posli do analysis1.root
root run.C

// nakresli rekonstruovane distribucie
root analysis1.root
t2->Print()
t2->Draw("massrho1")     (and save as .ps file)
.q

//niektore prikazy, ktore pouzival Jonathan
grep "start of event" log |wc -l
tail -f
w|wc -l (counting number of users)
screen   (nastartuj screen, spusti program)
screen -d  (detach screen)
screen -r  (retrieve screen)
IVAN->Draw("sqrt(PXJET**2+PYJET**2)")  (Root)
IVAN->Draw("NJET")                     (Root)

// ako uchovat histogram ako root file
save as .root file
// ako ho naloadovat spat:
root c1.root
c1->Draw()
//ako zmenit axis range: pravou mysou klikni na os y, podrz a zvol SeRangeUser