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Subject: Neat hash -d trick
From: Nikolai Weibull <now@bitwi.se>
To: Zsh Users <zsh-users@zsh.org>
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I came up with this just now:

for ((i =3D 1; i < 9; i++)); do
  hash -d .$i=3D${(j:/:)${(l:2::.:)${(s::)${(l:i::.:)}}}}
done

It allows you to write

cd ~.4/dir

which would cd to ../../../../dir, given that that directory exists.

If someone could come up with a simpler expansion that would be sweet.

What would be even sweeter is if someone would come up with a way to
do this with only one call to hash -d without writing out all the
expansions and can easily be parameterized.  I couldn=E2=80=99t figure out =
a
way to include the loop in the expansion.