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(2) Check out the code from SVN (require ATLAS privileges) or GitHub
either
$svn co $SVNINST/Institutes/SLAC/JetWorkingGroup/LightJetAnalysis/trunk LightJetAnalysis
where SVNINST stands for something like svn+ssh://[username]@svn.cern.ch/reps/atlasinst
or:
git clone https://github.com/pnefSLACJetWorkingGroup/LightJetAnalysis.git
If you run this on your local machine (and not on atlint) you need to adjust the file setup.sh to point to your local installation of fastjet and root.
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