Bash function to select, edit and then source one of .bashrc* files in user's home directory

editrc.bash

function editrc () {
  if [[ "$1" == "-h" ]] || [[ "$1" == "--help" ]] || [[ "$1" == "help" ]]; then
    cat <<EOF
  Usage: editrc [--help|-h|help] [ID]
    [ID]  - first column in output (index number)
  It may be executed without arguments and select the file with interactive prompt.

EOF
    return
  fi
  rc_scripts=$(find ~ -maxdepth 1 -name ".bash*" -type f | egrep -v "_history|*.save")
  n=0
  function listrc () {
    for f in ${rc_scripts}; do
      ((n++))
      printf '%s\t%s\n' "${n}" "${f}"
    done
  }
  if [[ -z $1 ]]; then
    rc_script=$(listrc | percol | awk $'{print $2}')
  else
    if [[ $1 =~ ^-?[0-9]+$ ]]; then
      rc_script=$(listrc | grep $1 | awk $'{print $2}')
    else
      echo "ERROR: wrong argument passed. It must be an integer. You provided: $1"
      return
    fi
  fi
  nano -Y bash ${rc_script}
  source ${rc_script} && echo ":: rc script: ${rc_script} was edited and sourced. ::"
}