Put this function to your .bashrc file.

Usage: mv oldfilename

If you call mv without the second parameter it will prompt you to edit the filename on command line.

Original mv is called when it's called with more than one argument.

It's useful when you want to change just a few letters in a long name.

function mv() {

  if [ "$#" -ne 1 ]; then

    command mv "$@"

    return

  fi

  if [ ! -f "$1" ]; then

    command file "$@"

    return

  fi

  read -ei "$1" newfilename

  mv -v "$1" "$newfilename"

}