centos7.9 2009 误删python2.7，导致yum失效解决方法 一键脚本python-yum.sh<!--more--> #临时文件目录准备 cd /root/ mkdr yum cd ./yum #下载相关资源包 wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/dbus-python-devel-1.1.1-9.el7.x86_64.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/libxml2-python-2.9.1-6.el7.5.x86_64.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-2.7.5-89.el7.x86_64.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-backports-1.0-8.el7.x86_64.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-backports-ssl_match_hostname-3.5.0.1-1.el7.noarch.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-chardet-2.2.1-3.el7.noarch.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-ipaddress-1.0.16-2.el7.noarch.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-kitchen-1.1.1-5.el7.noarch.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-libs-2.7.5-89.el7.x86_64.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-pycurl-7.19.0-19.el7.x86_64.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-setuptools-0.9.8-7.el7.noarch.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-urlgrabber-3.10-10.el7.noarch.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/rpm-python-4.11.3-45.el7.x86_64.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-3.4.3-168.el7.centos.noarch.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-plugin-aliases-1.1.31-54.el7_8.noarch.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-plugin-protectbase-1.1.31-54.el7_8.noarch.rpm wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-utils-1.1.31-54.el7_8.noarch.rpm #安装相关拓展包 rpm -Uvh RPM* yum* python* lib* db* #测试python python exit () #测试yum yum list

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Centos 换源，停用fastestmirror插件 1.首先备份原来的cent os官方yum源cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak2.获取阿里的yum源覆盖本地官方yum源wget http://mirrors.aliyun.com/repo/Centos-7.repo 3.清理旧包yum clean all 4.重新生成缓存yum makecache 停用fastestmirror插件 vi /etc/yum/pluginconf.d/fastestmirror.conf修改内容 enabled = 1//由1改为0

Python3 一键安装脚本 yum -y install wget && yum -y groupinstall "Development tools" && yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel && wget https://www.python.org/ftp/python/3.5.5/Python-3.5.5.tar.xz && mkdir /usr/local/python3 && tar -xvJf Python-3.5.5.tar.xz && cd Python-3.5.5 && ./configure --prefix=/usr/local/python3 && make && make install && ln -s /usr/local/python3/bin/python3 /usr/bin/python3 && ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3 && sudo yum -y install epel-release && sudo yum -y install python-pip