learning script

On Jan 19, 2004, at 2:32 PM, Bryce C wrote:

> export PATH="$PATH:."
> ^ what I'd use ^

I don't really understand bash but that looks like you can get multiple
instances of your home directory in your path if you sub-shell. Does
bash have something like 'typeset -U' in zsh to guarantee that every
element PATH is unique?