#!/usr/bin/env bash
# This function will create a random word pair with an underscore separator ex. turtle_ladder
# It accepts one optional argument (an integer) (the number of words to return)
random_words() {
  local num=${1:-2}
  local -a arr
  for ((i=0;i<num;i++)); do
    word=$(shuf -n1 /usr/share/dict/words | sed -e 's/-//g' -e 's/_//g')
    # Sanitize
    word="${word//-/}"
    word="${word//_/}"
    word="${word,,}"
    arr+=("$word")
  done
  printf "%s_" "${arr[@]}" | sed 's/_$//'
}

# Allow this file to be executed directly if not being sourced
if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
    random_words "$@"
    exit $?
fi