安装需求：
># yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel asciidoc
># yum install gcc perl-ExtUtils-MakeMaker 卸载Centos自带的git:
通过git –version查看系统带的版本，Cento7.0应该自带的是git版本是1.8.1
># yum remove git下载git2.2.1并将git添加到环境变量中：
># wget https://github.com/git/git/archive/v2.2.1.tar.gz
># tar zxvf v2.2.1.tar.gz
># cd git-2.2.1
># make configure
># ./configure --prefix=/usr/local/git --with-iconv=/usr/local/libiconv
># make all doc
># make install install-doc install-html
># echo "export PATH=$PATH:/usr/local/git/bin" >> /etc/bashrc
># source /etc/bashrc查看git版本：
># git --version
>git version 2.2.1另外链接：https://blog.csdn.net/zxy987872674/article/details/79220469