centos 更新git

[root@1 ~]# yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel asciidoc
[root@1 ~]# yum install  gcc perl-ExtUtils-MakeMaker

1）卸载系统自带的底版本git（1.7.1）
[root@localhost ~] git --version
git version 1.7.1
[root@localhost ~] yum remove git

2）编译安装最新的git版本
[root@localhost ~] cd /usr/local/src/
[root@localhost src] wget https://www.kernel.org/pub/software/scm/git/git-2.15.1.tar.xz
[root@localhost src] tar -vxf git-2.15.1.tar.xz
[root@localhost src] cd git-2.15.1
[root@localhost git-2.15.1] make prefix=/usr/local/git all
[root@localhost git-2.15.1] make prefix=/usr/local/git install
[root@localhost git-2.15.1] echo "export PATH=$PATH:/usr/local/git/bin" >> /etc/profile
[root@localhost git-2.15.1] source /etc/profile

[root@localhost ~] git --version
git version 2.15.1