ubuntu下载安装包

1. 如果只想下载单个包
   apt-get download  iptables-persistent
2. 下载包及依赖
   1. 方法1
      

      首先安装sudo apt install apt-rdepends

      apt-get download $(apt-rdepends your_package | grep -v "^ " | sed 's/debconf-2.0/debconf/g')

   2. 方法2
      

      查看依赖
      sudo apt-cache depends python
      创建包目录
      mkdir your_package&& cd your_package
      下载依赖

      $ for i in $(apt-cache depends python | grep -E 'Depends|Recommends|Suggests' | cut -d ':' -f 2,3 | sed -e s/'<'/''/ -e s/'>'/''/); do sudo apt-get download $i 2>>errors.txt; done