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I installed ROOTv5.34.03 and it comes with a script to set the necessary environment variables. The installation guide tells me to just run the script but that only sets the environment for that shell. I would like to have the environment set system wide. I found that running the script from bash_completion works as far as I can tell. Is this an acceptable solution, is there a better way? I am using ubuntu 12.10 64-bit. Also the script sets LD_LIBRARY_PATH so I can't place it in many common locations or else LD_LIBRARY_PATH gets erased.

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I think that /etc/profile is a better place if you want it for all users in the system. An other good place is to add it to /etc/profile.d/, just make sure that it ends with a .sh.

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I have tried that but it requires that I define the LD_LIBRARY_PATH variable in etc/ld.so.conf.d/*.conf. I would rather have a single change in case I need to erase or change the variable values. But I guess I'm asking if my solution is harmful I'm any way. –  Fred Dec 29 '12 at 22:47
    
If you want to change the values I would recommend ~/.bashrc That file get sourced every time you start a new shell. –  McNisse Dec 29 '12 at 22:57
    
Well then putting the script in bash_completion should be fine as out gets used at the end of ~/.bashrc, right? –  Fred Dec 30 '12 at 0:11

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