A Red Hat tem o arquivo de recursos global em /etc/vimrc
.
Pode ser verificado com:
$ strace -eopen -o log vim test
$ grep vimrc log
open("/etc/vimrc", O_RDONLY) = 3
open("/root/.vimrc", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/root/_vimrc", O_RDONLY) = -1 ENOENT (No such file or directory)