複数のプロジェクトをナビゲートするためのシェル関数のオプションを解析する方法

私が書いたいbashのヘルプを使うことができます。スクリプトの目的は、複数のプロジェクトを作業するときに開発をスピードアップすることです。コードで気になる部分を表示しておきました。

# is there a way to persist this through working enviornments besides this?
declare -x WORKING=`cat ~/.working`

#alias p='builtin cd $WORKING && pwd && ls'
alias pj='builtin cd $WORKING/public/javascripts && pwd && ls'

function pp {
echo `pwd` > ~/.working
}


# is there a way to close the scope of this function?
function p {

  # how do I process flags here?
  # -f and -d etc. can exist but may not
  # either way I want $1 to be set to the first string if there
  # is one


  if [ -z "$1" ]
  then
    echo '*'
    builtin cd $WORKING && pwd && ls
    return
  fi



  BACK=`pwd`
  builtin cd $WORKING

  #f=`find . -iname "$1"`
  f=( `echo $(find . -type d -o -type f -iname "$1") | grep -v -E "git|node"` )
  #echo ${f[1]}

  if [ -z "${f[0]}" ]
  then
    return
  fi


  if [ -z "${f[1]}" ]
  then
    # how can I write this as a switch?
    if [ -f ${f[0]} ]
    then
      vim ${f[0]}
      return
    fi
    if [ -d ${f[0]} ]
    then
      builtin cd ${f[0]}
      return
    fi
  else
    echo "multiple found"
  #for path in $f
  #do
  # sort files and dirs
  #  sort dirs by path
  #  sort files by path
    #done

  #  display dirs one color
  #  display files another color
  #     offer choices
  #     1) open all files
  #     2) open a file
  #     3) cd to selected directory
  #     4) do nothing

  fi


 # nothing found
 builtin $BACK
}