CentOS7中使用shell脚本安装python3.8环境(推荐)

  #!/bin/bash  echo "使用时将python的tar包放到/root/目录下"  read -p "此脚本需要联网,若是虚拟机,请将网络适配器改为nat模式" -t 2  echo  sed -i "s/BOOTPROTO=static/BOOTPROTO=dhcp/" /etc/sysconfig/network-ifcfg-ens33  ifdown ens33  ifup ens33  systemctl start network &>/dev/null  systemctl restart network &>/dev/null  if [ $? -eq 0 ];then  ip=`ifconfig ens33 | awk 'NR==2 {print $2}'`  echo "获取IP地址成功，地址为$ip"  else  echo "获取地址失败,请自行查看网络情况"  exit 1  fi  ping -c 3 www.baidu.com &>/dev/null  if [ $? -eq 0 ];then  echo "网络连接成功,开始执行后续代码"  else  echo "网络连接失败,请查看地址是否可用"  exit 1  fi  cd /etc/yum.repos.d/  rm -rf *  wget http://mirrors.163.com/.help/CentOS7-Base-163.repo &>/dev/null  yum clean all &>/dev/null  yum makecache &>/dev/null  yum install gcc patch libffi-devel python-devel zlib-devel bzip2-dnssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-4-devel libpcap-devel xz-devel -y &>/dev/null  echo "搭建国内yum源成功,正在开始安装python环境"  cd /root/  tar zxf Python-3.8.0a2.tgz &>/dev/null  cd Python-3.8.0a2/  ./configure --prefix=/usr/local/python_3.8 &>/dev/null  if [ $? -eq 0 ];then  echo "环境安装完成,正在配置python3.8"  else  echo "环境安装出错,请检查依赖包是否全部安装"  fi  make -j 4 &>/dev/null  make install &>/dev/null  ln -s /usr/local/python_3.8/bin/* /usr/bin/  echo "python3.8安装完成，位于/usr/local/python_3.8"

  [root@test2 ~]# python3  Python 3.8.0a2 (default, Mar 29 2020, 19:45:00)   [GCC 4.8.5 20150623 (Red Hat 4.8.5-16)] on linux  Type "help", "copyright", "credits" or "license" for more information.  >>> print('hello')  hello  >>> #Ctrl+d退出