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git1.7.1:
通过git –version查看系统带的版本，Cento6.5应该自带的是git版本是1.7.1
># 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
查看版本号
># git --version
>git version 2.2.1
出现问题：
1./bin/sh: line 1: asciidoc: command not found
安装asciidoc:
># wget https://sourceforge.net/projects/asciidoc/files/asciidoc/8.6.9/asciidoc-8.6.9.tar.gz/download
$ tar -xzf asciidoc-8.6.9.tar.gz
$ cd asciidoc-8.6.9
$ ./configure
$ sudo make install
2./bin/sh: line 1: xmlto: command not found
yum install xmlto
3.GEN configure
/bin/sh: autoconf: command not found
make: *** [configure] Error 127
yum install autoconf