Linux学习笔记（九）Ubuntu代理设置及apt-get
切换到root用户
someuser@u-bigboy:~$ sudo su -
增加sudo用户
vi /etc/sudoer
增加代理
sudo /etc/apt/apt.conf
acquire::http::proxy "http://username:passowrd@proxy:80/";
更新Software
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install/remove openssh-server Ubuntu
sudo apt-get install/remove vim Ubuntu
or
sudo yum install/remove openssh-server CentOS
cp -r /root/ /mnt /*将/root目录中的所有文件及其子目录拷贝到目录/mnt中*/
