1.安装编译git时需要的包

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

# yum install  gcc perl-ExtUtils-MakeMaker

2.删除已有的git

# yum remove git

3.下载git源码

# cd /usr/src
# wget https://mirrors.edge.kernel.org/pub/software/scm/git/git-2.19.0.tar.gz --no-check-certificate 
# tar xzf git-2.19.0.tar.gz

4.编译安装

# cd git-2.19.0 
# make prefix=/usr/local/git all
# make prefix=/usr/local/git install
# echo "export PATH=$PATH:/usr/local/git/bin" >> /etc/bashrc
# source /etc/bashrc

5.检查一下版本号

# git --version