ubuntu 大小写指示的小工具

        最近买个了小本lenovo x100e，结果发现这小本没有大小写指示灯，在windows用也无妨，不过我常常用这本在ubuntu中调试linux代码，vi 常用的编辑器，熟悉的都知道，大小写很关键的，用google搜了一下，发现可以用如下方法解决：

       1.  “sudo apt-get install lock-keys-applet”

       2. Although installed it's not added by default. You need to right-click the panel and select 'Add to Panel', then find the Lock Keys applet and click add.

refer to:
http://ubuntuforums.org/showthread.php?t=1224918