安装git
查看git官网说明安装git需要第三方isu源：
https://git-scm.com/download/linux
Red Hat Enterprise Linux, Oracle Linux, CentOS, Scientific Linux, et al.
RHEL and derivatives typically ship older versions of git. You can download a tarball and build from source, or use a 3rd-party repository such as the IUS Community Project to obtain a more recent version of git.
安装ius源
ius源官方：https://ius.io/setup
安装命令
yum install \
https://repo.ius.io/ius-release-el7.rpm \
https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
查看ius源最新的git版本
https://repo.ius.io/7/x86_64/packages/g/
ius源git.png
如上图所示，最新版本是236
删除老版本，并安装新版本git
yum remove git
yum install git236
git --version
转载自 ：Centos7安装最新版本git
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