I have several cases where I would like to concatenate two directories.
eg. there is a dir /etc/profile.d and I have a dir /wa1/profile_local.d that contains files that define local aliases and functions. Right now I copy the contents of profile_local.d to profile.d whenever I install a new system or set up a new machine. Is there any way that I can simply make the local dir appear as an extension of /etc/profile.d? That is, get the same result as if I copied the contents of my local dir to /etc/profile.d?