There's a really cool feature in zsh that allows you to uniquely add a
string to the path, if it did not exist before:
typeset -U path
This makes all items in path have to be unique, so then, if you do:
path=(/foo/bin $path)
path=(/foot/bin $path)
You will NOT have two /foo/bin(s) in your path.
Is there an equivalent way to do this in fish?
-Dave
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