1、步骤一：xshell登陆Linux，执行yum -y install gcc安装gcc软件，出现报错-bash: /usr/bin/yum: /usr/bin/python3.4: bad interpreter: No such file or directory
3、步骤三：whereis yum查看yum命令的安装路径[root@nagio衡痕贤伎s ~]# whereis yumyum: /usr/bin/yum /etc/yum /etc/yum.conf /usr/share/man/man8/yum.8.gz查看文件/usr/bin/yum配置将#!/usr/bin/python3.4修改为#!/usr/bin/python2.6，然后保存
4、步骤四：再次执行yum -y install gcc，正常安装无报错
