You would like to configure your environment differently depending on which supercomputer you are using.
- NERSC maintains the copies of the .bashrc, .profile, .bash_profile. This sets the environment universally for all supercomputer users.
- Users can modify versions of these files which have the
.extfile name. For example the equivalent
.bashrc.ext. These can edited by the user.
If your environment ends up broken and you can't figure out how to fix it - the fixdots command (/usr/common/usg/bin/fixdots) will reset your dotfiles to the NERSC templates