learning script

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Autor: Chris Gehlker
Data:  
Assunto: 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?