如题，发现 vim的配置文件是以 rc 结尾的，bash 的配置文件有的也是以 rc 结尾的？那么 rc 到底是什么意思？
http://unix.stackexchange.com/questions/3467/what-does-rc-in-bashrc-st...
http://www.catb.org/jargon/html/R/rc-file.html
表示 runcom，可以理解为 run command
其实 rc 有很多种解释，比较容易理解的有：run commands，runtime configuration 等等。个人觉得比较靠谱的是这个：
The ‘rc’ suffix goes back to Unix's grandparent, CTSS.
It had a command-script feature called "runcom". Early
Unixes used ‘rc’ for the name of the operating system's
boot script, as a tribute to CTSS runcom.