Ubuntu更新的几种命令: 1.列举本地更新 sudo apt-get update 2.安装可用更新 sudo apt-get upgrade 3.查询软件包 apt-cache search package_name 4.安装一个软件包 sudo apt-get install package_name 5.删除一个软件包 sudo apt-get remove package 6.列举其他apt-get 命令 apt-get help 7.install/unstall .deb files sudo dpkg -i package_file.deb ,sudo dpkg -r package_filename 8.convert .rpm to .deb files sudo alien package 9.install tarballs tar xfvz tarball_name