uniquefy_buttpaths

uniquefy.sh

uniquefy_search_path ()
{
  OIFS="$IFS"
  IFS='
'
  set -- $(echo ${1+"$@"} | sed -r 's@/*:|([^\\]):@\1\n@g;H;x;s@/\n@\n@')
  IFS="$OIFS"

  _y=""
  for _x ; do
    case ":${_y}:" in
      *:"${_x}":*) continue
    esac
    _y=${_y:+"$_y:"}${_x}
  done

  echo "${_y}"
  unset _y _x
}