I sometimes forget to sudo my vim

sudovim.sh

#!/bin/bash -ue
# Christian Bryn <chr.bryn@gmail.com> 2016
# License: WTFPL
# Easy-to-use wrapper for sudo that helps you remember to launch vim with sudo when needed
# Stick this in ~/bin/

# autodetection of editor:
#cmd=$( which $EDITOR )
#...does not work as soon as this file is in path, right...if it's called the same as EDITOR, of course ('vim')

# default editor path:
[[ -z "${cmd:-}" ]] && cmd="/usr/bin/vim"

for f in "$@";
do
  [[ -f "${f}" ]] || continue
  if [[ ! -w "${f}" ]]
  then
    while :;
    do
      read -p "'${f}' is not writable - launch with sudo? [y/n]"
      case $REPLY in
        y|Y)
        cmd="sudo ${cmd}"
        break
        ;;
        n|N)
        break
        ;;
      esac
    done
  fi
  [[ "${REPLY:-}" == "" ]] || break
done

${cmd} "$@"