Git版本升級（查看版本信息 git version）
舊版本：git version 1.7.1
新版本：git version 2.2.1
一、安裝依賴包：
1、下載安裝 libiconv-1.14.tar.gz
wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.14.tar.gz tar zxvf libiconv-1.14.tar.gz cd libiconv-1.14 ./configure --prefix=/usr/local/libiconv make && make install
2、yum安裝依賴包
yum -y install curl-devel expat-devel gettext-devel openssl-devel zlib-devel asciidoc gcc perl-ExtUtils-MakeMaker tcl xmlto
注：asciidoc如果無法通過yum安裝，請下載包，編譯安裝
wget --no-check-certificate https://jaist.dl.sourceforge.net/project/asciidoc/asciidoc/8.6.9/asciidoc-8.6.9.zip unzip asciidoc-8.6.9.zip cd asciidoc-8.6.9 ./configure nake && make install
二、安裝 新版git包
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:/usr/local/git/libexec/git-core" >> /etc/bashrc
三、查看新版本
git version