script_path="$( cd -P "$( dirname "$(readlink -f "${0}")" )" && pwd )"
-[[ -z "${1-""}" ]] && echo "引数としてページ名を英語で短く指定してください" >&2 && exit 1
+[[ -z "${1-""}" ]] && echo "Set English short title for argument" >&2 && exit 1
cd "${script_path}" || return 0
filename="posts/$(date +%Y%m%d)/${1}/index.md"