Install vim, telnet, ifconfig commands in the docker container

When using the docker container, sometimes there is no vim installed in it. When you type the vim command, the prompt says: vim: command not found, you need to install vim at this time, but when you type the apt-get install vim command, it prompts:

 

        Reading package lists... Done
        Building dependency tree       
        Reading state information... Done
        E: Unable to locate package vim

 

        At this time, you need to type: apt-get update，

 

The purpose of this command is to synchronize the indexes of the sources listed in /etc/apt/sources.list and /etc/apt/sources.list.d so that the latest packages can be obtained.

 

        After the update is complete, type the command: apt-get install vim command .

 

 

 

​apt-get install  telnet   安装telnet

 

 ​apt-get install  net-tools   安装ifconfig