1. 安装yum源
centos7:
wget http://opensource.wandisco.com/centos/7/git/x86_64/wandisco-git-release-7-1.noarch.rpm && rpm -ivh wandisco-git-release-7-1.noarch.rpm
or
wget http://opensource.wandisco.com/centos/7/git/x86_64/wandisco-git-release-7-2.noarch.rpm && rpm -ivh wandisco-git-release-7-2.noarch.rpm
2. 安装git 2.x
yum install git -y
3. 验证
git –version