As a system administrator with root access on a unix machine, is it possible to provide default shell variables to all users of a system?  That is, as an individual unix user, I can define environmental variables in my bash shell by editing my .bash_profileexport FOO=BARIs there a way to provide all users with a default set of environmental variables without editing each user's individual shell variables?  If there a way to provide specific users with default variables?Long time *nix user here, but I've never done much on the administering a unix machine side, so my apologies if this is a dump/naive question. 
Global Shell Variables?
shell;administration