ror官方网站：
http://mand again

$ export CVSROOT='/home/cvs'
$ cvs export -r HEAD module

我最喜欢的CVS配置入门资料
CVS
Ashley J.S Mills Alan P Sexton
Copyright ? 2005 The University Of Birmingham
http://supportweb.cs.bham.ac.uk/documentation/tutorials/docsystem/build/tutorials/cvstute/cvstute.html


我最喜欢的makefile入门资料
Makefile Tutorial
http://mrbook.org/tutorials/make/

我最喜欢的shell脚本编写入门教材
how to write a shell script
http://vertigo.hsrl.rutgers.edu/ug/shell_help.html