系统环境：centos6.6

1,安装准备

yum -y install gcc zlib-devel openssl-devel perl cpio expat-devel gettext-devel openssl zlib curl autoconf tk

yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel

下载最新git: #cd /opt/下

#wget https://www.kernel.org/pub/software/scm/git/git-2.7.0.tar.gz     (或者从官网 http://git-scm.com/download ；http://git-core.googlecode.com/files)

#tar zxvf git-2.7.0.tar.gz

#cd  git-2.7.0

#make prefix=/opt/git all doc              安装在/opt/git目录

#make prefix=/opt/git install install-doc

#./configure --prefix=/opt/git

#make

#make install

#/opt/git/bin/git --version

git version 2.7.0

为了方便使用，做一个软链接

#ln -s /opt/git/bin/* /usr/bin/  [如果安装在/usr/local下系统环境变量无需要做软链接]

#在系统任意目录下输入：git --version

git version 2.7.0

即安装成功

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方法二  安装目录在/usr/local