EddydeMacBook-Pro:~ eddy$ vi ~/.bash_profile EddydeMacBook-Pro:~ eddy$ vim /etc/profile EddydeMacBook-Pro:~ eddy$ vim /etc/bashrc EddydeMacBook-Pro:~ eddy$ sudo vi /etc/hosts
http://elf8848.iteye.com/blog/1582137
原文：http://www.cnblogs.com/Eddyer/p/5114394.html