We will use git. There is a lot of documentation on the web, so it should be easy to get help if you are stuck.

First time checkout

To get started, please run

• git clone /nfs/slac/g/lcd/ilc_data4/DBD/repository/ ZGamma_analysis
• cd ZGamma_analysis

Then copy the files that you have already created (only the code, not the stdhep files and not the ROOT files) to this directory.

• cp /path/to/source.py /path/to/analysis.C /path/to/whizardinput.sin .
• git add *.*
• git commit -m "first commit"
• git push

I made some changes to my code and want to share it

• git status # this shows you the files that were changed. If you have created new files, add them with "git add <filename.ext>"
• git commit -am "I changed the fit shape to a double Gaussian" # use a meaningful message
• git push

Somebody else made some changes, and I would like to get them

• git pull # to get the changes
• git log # to read the messages about the changes