Linux下备份及重装系统后还原系统设置和软件, 来自 http://askubuntu.com/questions/9135/best-way-to-backup-all-settings-list-of-installed-packages-tweaks-etc

Linux backup and reinstall settings and software.sh

## from http://askubuntu.com/questions/9135/best-way-to-backup-all-settings-list-of-installed-packages-tweaks-etc

dpkg --get-selections > ~/Package.list
sudo cp /etc/apt/sources.list ~/sources.list
sudo apt-key exportall > ~/Repo.keys
rsync --progress /home/`whoami` /path/to/user/profile/backup/here

##  Reinstall now

rsync --progress /path/to/user/profile/backup/here /home/`whoami`
sudo apt-key add ~/Repo.keys
sudo cp ~/sources.list /etc/apt/sources.list 
sudo apt-get update
sudo apt-get install dselect
sudo dpkg --set-selections < ~/Package.list
sudo dselect