Two versions of git installed, currently using old one, how do I switch?

问题

I need some help, I had a version of git installed a while back (not sure how) not using homebrew. I just installed with homebrew and I'm not sure how to use the new one instead of the old one. Ideas? Thanks in advance

$ which -a git
/usr/local/bin/git
/usr/bin/git
/usr/local/bin/git

$ which git
/usr/local/bin/git

$ /usr/bin/git --version
git version 1.7.5.4

$ /usr/local/bin/git --version
git version 1.8.4

$ git --version
git version 1.7.5.4

回答1:

export PATH=/usr/local/bin:$PATH

来源：https://stackoverflow.com/questions/19231747/two-versions-of-git-installed-currently-using-old-one-how-do-i-switch