Ubuntu更新命令

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