download aeternity newest package

ae-downloader.sh

#!/bin/zsh
#Problems:
#1. `` and "" trigger: parse error near `&'
#2. wget -O "filename" "url": dont copy/past in command, do it in script; double quote url;
latest_ae=https://github.com/aeternity/epoch/releases/latest

echo "正在获取ae最新的下载链接..."

ae_url=`curl --silent $latest_ae | grep -n 'href=\".*\"' | cut -d '"' -f 2`

download_path=`curl --silent $ae_url | grep 'href=\".*ubuntu.*\"' | cut -d '"' -f 2`

download_link="https://github.com$download_path"

download_url=`curl --silent $download_link | cut -d '"' -f 2`

#urldecode
final_download_url=$(echo -n $download_url | sed 's/\\/\\\\/g;s/\(%\)\([0-9a-fA-F][0-9a-fA-F]\)/\\x\2/g;s/\&amp\;/\&/g')

echo "最新的下载链接为:"

final_download_url=$(echo -e $final_download_url)

echo "开始下载epoch..."
wget -O 'epoch.tar.gz' "$final_download_url"

# $(echo -e $final_download_url | wget -O 'epoch.tar.gz')
#wget $full_download_url

echo "epoch下载完成..."