Setting environment variables ROOT install

ROOT
1

Dear all,

I am having trouble with setting correctly the environment variables to run ROOT. I have just installed as operating system Ubuntu 12.04 32bits.

After building successfully ROOT, I followed the documentation to set the environment variables, that is to say, on terminal

export ROOTSYS=/root
export PATH=$PATH:$ROOTSYS/bin
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ROOTSYS/lib

Then, after typing on terminal, placed on $HOME/root, “. bin/thisroot.sh”, ROOT was running. Eveything ok until here according to guides.

The problem arises when I reboot the computer. Then, when I type on terminal “root”, root does not run. I tried to solve this by writting the three “export” lines above on “.bashrc” but nothing gets better. I realised that I have to type on terminal every time “. bin/thisroot.sh”, when I’m on $HOME/root, and then ROOT runs. I think this is not normal.

Somebody knows how to set the environment variables for ROOT in a definite way? So, I just type “root” on any terminal and ROOT runs.

Thanks in advance&sorry if this question is stupid…

2

Well, there are different command shells (with similar scripting languages), different ways to set environment variables, different ways to execute scripts when you log in. None of them is a ROOT related topic. thisroot.sh, indeed, is a nice script to set variables you need, up to you how and when you execute it.
I think any book on linux/unix or bash/ksh/csh has a lot of examples how to do it.
Or even better - read Ubuntu’s forums/docs on how to do this, since things sometimes are quite different/special on Ubuntu (starting, I think, from 11.x releases). For example, on my Ubuntu 12.04 (in a virtual box) I can execute thisroot.sh from .bashrc (which is in my home directory) and so if I open the terminal (start bash), I can use ROOT immediately without setting any enviroment variables manually.