#将文件里的内容全部删除，当然之前也可以用
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak#好习惯就是这样养成的 （注：只复制粘贴所有deb开头的行。细心的读者会发现源sources.list文件中有以许多#开头的行，这个#意味这此行为注释行，不起作用，剩余 的deb的行才是真正的源）
Ubuntu 10.04 台湾更新源：
deb lucid main universe restricted multiverse
deb lucid-updates universe main multiverse restricted
deb lucid-proposed universe main multiverse restricted
deb lucid-security universe main multiverse restricted
deb lucid-backports main multiverse restricted universe
deb-src lucid main universe restricted multiverse
deb-src lucid-security universe main multiverse restricted
deb-src lucid-updates universe main multiverse restricted
deb-src lucid-proposed universe main multiverse restricted
deb-src lucid-backports universe main multiverse restricted
Ubuntu 10.04更新源 -Lucid Lynx-中国源 提供 ArchLinux，Everest，FreeBSD，Fedora，LFS，Magiclinux，Mandriva，OpenOffice，openSUSE，Puppy，RedHat，Slitaz，Turbolinux，Ubuntu， 中标普华
deb lucid main universe restricted multiverse
deb-src lucid main universe restricted multiverse
deb lucid-security universe main multiverse restricted
deb-src lucid-security universe main multiverse restricted
deb lucid-updates universe main multiverse restricted
deb lucid-proposed universe main multiverse restricted
deb-src lucid-proposed universe main multiverse restricted
deb lucid-backports universe main multiverse restricted
deb-src lucid-backports universe main multiverse restricted
deb-src lucid-updates universe main multiverse restricted
rootguide源，Ubuntu官方上海源，提供 Kernel，Hiweed，ubuntu
deb lucid main universe restricted multiverse
deb-src lucid main universe restricted multiverse
deb lucid-security universe main multiverse restricted
deb-src lucid-security universe main multiverse restricted
deb lucid-updates universe main multiverse restricted
deb lucid-proposed universe main multiverse restricted
deb-src lucid-proposed universe main multiverse restricted
deb lucid-backports universe main multiverse restricted
deb-src lucid-backports universe main multiverse restricted
deb-src lucid-updates universe main multiverse restricted
网易开源镜像站,提供 FreeBSD，OpenBSD，archlinux，CentOS，cygwin，debian，Fedora，gentoo，kernel，openSUSE，slackware，Ubuntu
deb lucid main universe restricted multiverse
deb-src lucid main universe restricted multiverse
deb lucid-security universe main multiverse restricted
deb-src lucid-security universe main multiverse restricted
deb lucid-updates universe main multiverse restricted
deb lucid-proposed universe main multiverse restricted
deb-src lucid-proposed universe main multiverse restricted
deb lucid-backports universe main multiverse restricted
deb-src lucid-backports universe main multiverse restricted
deb-src lucid-updates universe main multiverse restricted
搜狐开源镜像站，提供 CPAN，FreeBSD，NetBSD，OpenBSD，apache，archlinux，centos，cygwin，dag，debian，Fedora，gentoo，kernel，lfs，mysql，nginx，openSUSE，php，rpmfusion，slackware，Ubuntu
deb lucid main universe restricted multiverse
deb-src lucid main universe restricted multiverse
deb lucid-security universe main multiverse restricted
deb-src lucid-security universe main multiverse restricted
deb lucid-updates universe main multiverse restricted
deb lucid-proposed universe main multiverse restricted
deb-src lucid-proposed universe main multiverse restricted
deb lucid-backports universe main multiverse restricted
deb-src lucid-backports universe main multiverse restricted
deb-src lucid-updates universe main multiverse restricted
网易开源镜像站,提供 FreeBSD，OpenBSD，archlinux，centos，cygwin，debian，Fedora，gentoo，kernel，openSUSE，slackware，Ubuntu
deb lucid main universe restricted multiverse
deb-src lucid main universe restricted multiverse
deb lucid-security universe main multiverse restricted
deb-src lucid-security universe main multiverse restricted
deb lucid-updates universe main multiverse restricted
deb lucid-proposed universe main multiverse restricted
deb-src lucid-proposed universe main multiverse restricted
deb lucid-backports universe main multiverse restricted
deb-src lucid-backports universe main multiverse restricted
deb-src lucid-updates universe main multiverse restricted