centos 升级Git版本

1.源码编译

yum remove -y git  #卸载旧版本Git
yum install -y tk zlib-devel openssl-devel perl cpio expat-devel gettext-devel  asciidoc xmlto autoconf  #安装依赖，否则一路报错....
wget https://www.kernel.org/pub/software/scm/git/git-2.1.2.tar.gz  
tar xf v2.2.1.tar.gz
cd git-2.2.1
make configure 
./configure --prefix=/usr/local/git --with-iconv=/usr/local/libiconv   #添加 iconv 支持
make all doc  #编译并生成帮助文档
make install install-doc install-html #安装程序
echo "export PATH=$PATH:/usr/local/git/bin" >> ~/.bash_profile
echo "export GIT_SSL_NO_VERIFY=1" > ~/.bash_profile     (如果不加入这句会出现fatal Peer certificate cannot be authenticated with known CA certificate)
source ~/.bash_profile
git --version

Git 项目地址：https://github.com/git/git

 2.yum安装

Git文档：https://git-scm.com/download/linux

仓库文档：https://ius.io/setup

 安装repo

yum install \
https://repo.ius.io/ius-release-el7.rpm \
https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

安装指定版本

版本参考：https://github.com/iusrepo?q=git&type=all&language=&sort=

 安装2.36

yum install git236
 git version

"一劳永逸" 的话，有是有的，而 "一劳永逸" 的事却极少