fbreader无须再多介绍，linux下看txt的必备工具。
之所以推荐更新，是因为新版中功能又的较大改版。
首先，书籍管理界面变得更加美观
最主要一点是，中文书籍也可以使用网络搜索了。（官方增加了shucang的搜索下载）
因此，推荐使用旧版的更新
安装方法。
Installation from the repository:
add the following lines to your /etc/apt/sources.list:
deb http://www.fbreader.org/desktop/debian stable main
deb-src http://www.fbreader.org/desktop/debian stable main
(optional) install our PGP key:
download the key file http://www.fbreader.org/desktop/debian/ ... er.org.asc
as root, run ‘apt-key add geometer.fbreader.org.asc’
as root, run ‘apt-get update’.
(optional) by default, gtk+ interface module will be installed. If you prefer to use FBReader with qt (or with qt4) inreface, run with root privileges ‘apt-get install libzlui-qt’ (or ‘apt-get install libzlui-qt4’).
as root, run ‘apt-get install fbreader’.
