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# Install Bash 4 using homebrew
brew install bash

# Or build it from source...
curl -O http://ftp.gnu.org/gnu/bash/bash-4.2.tar.gz
tar xzf bash-4.2.tar.gz
cd bash-4.2
./configure --prefix=/usr/local/bin && make && sudo make install

# Add the new shell to the list of legit shells
sudo bash -c "echo /usr/local/bin/bash >> /private/etc/shells"

# Change the shell for the user
chsh -s /usr/local/bin/bash

# Restart terminal.app (new window works too)

# Check for Bash 4 and /usr/local/bin/bash...
echo $BASH && echo $BASH_VERSION

# Put this somewhere in your dotfiles to turn on recursive globbing
shopt -s globstar

# Source your dotfiles...
source path/to/dotfiles

# Now you can double glob your way into distant directories
cd some/uportal/project/root
cd **/skins