git 地址：

https://www.kernel.org/pub/software/scm/git/

1. 先安装一堆依赖

yum install curl curl-devel zlib-devel openssl-devel perl cpio expat-devel gettext-devel perl-ExtUtils-MakeMaker

2. 下载最新的git

先切换到下载目录。我习惯下载到src目录

cd /usr/local/src

wget https://www.kernel.org/pub/software/scm/git/git-2.4.0.tar.gz

3. 解压

tar -xvzf git-2.4.0.tar.gz

4. 编译 安装

cdgit-2.4.0

./configure && make && make install

最后 git --version 查看版本