おっぱいそんちくびんびん♪ (Bash)

おっぱい.sh

#!/bin/bash
#
# おっぱい.sh
#
# 2019/08/20: initial release
#
#   Ubuntu 18.04.2 LTS (Bionic Beaver)
#
#     GNU bash, version 4.4.20(1)-release (x86_64-pc-linux-gnu)
#     Copyright (C) 2016 Free Software Foundation, Inc.
#     License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
#
# Dedicated to shirasu
# https://gist.github.com/8q/a5331c6ef8a205b32125
#

MAX_RAND=$((32767-(32767 % 6)))
oppaiRand () {
  local rand=$RANDOM
  while [ "${rand}" -ge "${MAX_RAND}" ]
  do
    rand=$RANDOM
  done
  echo "$((${rand} % 6))"
}

contains () {
  local e match="$1"
  shift
  for e; do [[ "${e}" == "${match}" ]] && return 0; done
  return 1
}

readonly RealStr='おっぱいそんちくびんびん'
readonly OppaiElements=('おっ', 'ぱい', 'そん', 'ちく', 'びん', 'びん')

testStr=''
count=0
while [ "${testStr}" != "${RealStr}" ]
do
  let ++count

  numList=()
  while [ ${#numList[@]} -lt 6 ]
  do
    num=`oppaiRand`
    contains "${num}" "${numList[@]}"
    if [ $? -ne 0 ]; then
      numList=("${num}" "${numList[@]}")
    fi
  done

  testStr=''
  for n in "${numList[@]}";
  do
    testStr="${testStr}${OppaiElements[${n}]}"
  done
  testStr="${testStr//,/}"

  echo "${count} ${testStr}"
done

printf "おめでとうございます！\x20"
echo "あなたは${count}回目に${RealStr}しました。"
echo "end"
exit 0