cdp function - dead simple approach to creating and visiting directory aliases

cdp.sh

# directory where aliases are stored
export CDP_PATH=~/dotfiles/cdp_symlinks

# cdp --add               <-- creates an alias of the current direcotry path, named for the current folder name 
# cdp --add custom-name   <-- same as above with custom-name
# cdp another-name        <-- change into alias
# cdp --list              <-- see all aliases available to cdp
# cdp --remove some-name  <-- remove an alias
# cd `cdp --path`         <-- change into the directory where aliases are stored
function cdp {
   if [[ $1 == "--path" || $1 == '-p' ]]; then
      if [[ $2 ]]; then
         export CDP_PATH=$2
      else
         [[ $CDP_PATH ]] && echo $CDP_PATH || echo '$CDP_PATH not pointing at a directory.'
      fi
      return
   fi

   if [[ ! $CDP_PATH || ! -d $CDP_PATH ]]; then
      [[ ! $CDP_PATH ]] \
         && echo '$CDP_PATH not set — example: mkdir ~/.cdp_symlinks; export CDP_PATH=~/.cdp_symlinks' \
         || echo '$CDP_PATH not pointing at a directory.'
      return
   fi

   if [[ $1 == '--add' || $1 == '-a' ]]; then
      local dir=`pwd`
      [[ $dir == $CDP_PATH ]] && return
      cd $CDP_PATH > /dev/null
      [[ $2 ]] && ln -s $dir $2 > /dev/null || ln -s $dir > /dev/null
      cd - > /dev/null

   elif [[ $1 == '--remove' || $1 == '-r'   ]]; then
      [[ $2 ]] \
         && rm $CDP_PATH/$2 \
         || echo 'missing arugment for remove'

   elif [[ $1 == "--list" || $1 == '-l' ]]; then
      ls -lG $CDP_PATH

   else
      CDPATH=$CDP_PATH
      cd -P $1 > /dev/null
      CDPATH=''
   fi
}