Download file from cloud.mail.ru from linux console with bash script

dl-cloud-mail-ru.sh

#!/usr/bin/env bash

# idea: https://novall.net/itnews/bash-skript-dlya-skachivaniya-fajlov-s-mail-ru-cherez-konsol-linux.html

for link in "$@" ;
do URL="$link"
FILENAME=$(curl -A "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:56.0) Gecko/20100101 Firefox/56.0" -s "$URL" | grep -E '"name":' | tac | head -1 | sed -e 's|.*"name":\ "||' -e 's|",.*||')

URLPART0=$(wget -U "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:56.0) Gecko/20100101 Firefox/56.0" --quiet -O - "$URL" | grep -o '"weblink_get":\[[^]]\+\]' | sed 's/.*"url":"\([^"]\+\)".*/\1/')
URLPART1=$(echo "$URL" | awk -F '/public/' '{print $2}')
URLPART2=$(wget -U "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:56.0) Gecko/20100101 Firefox/56.0" --quiet -O - "https://cloud.mail.ru/api/v2/tokens/download" | sed 's/.*"token":"\([^"]\+\)".*/\1/')
wget --no-check-certificate -U "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:56.0) Gecko/20100101 Firefox/56.0" --referer="$URL" "$URLPART0/$URLPART1/$FILENAME?key=$URLPART2" -O "$FILENAME"
done