Get this from rupa/z in github.

Install this way:

cd /usr/bin
sudo curl -O https://raw.github.com/rupa/z/master/z.sh
sudo chmod 775 z.sh
. /usr/bin/z.sh

Use this way.

1. Access directory cd /Applications/MAMP/htdocs/greatsite.com
2. Go to another path, let’s say home cd ~
3. Just type “z ww” z ww
4. Yes! Now we are in that /blahblahblah/blehblehbleh/merrychristmas path

Enjoy it!