Snippet to implement the ZSH autopushd functionality in BASH. `dc` (the inverse of `cd`) and `flip` utilities are included. `cd` is silent and behaves as the builtin with no argument. `dc` and `flip` list directory stack.

autopushd.sh

# Credit to http://unix.stackexchange.com/a/4291 for the cd() implementation.

alias dc='popd'
alias flip='pushd'

function cd()
{
  if [ $# -eq 0 ]; then
    DIR="${HOME}"
  else
    DIR="$1"
  fi

  builtin pushd "${DIR}" > /dev/null
}