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一，问题描述

docker 容器内运行vim 命令，报错 vim: command not found

二，问题原因

docker容器中没有安装vim ，安装vim 即可。

三，解决步骤

3.1 运行apt-get update 命令

3.1.1 如果运行 apt-get update 命令报错的话

Job for docker


.service failed because the control

出现这个问题，大概率是DNS解析的问题，需要在宿主机指定下dns

{
    "dns": ["114.114.114.114","8.8.8.8"]
}

[root@localhost admin]# cat /etc/docker/daemon.json
{
  "registry-mirrors": ["https://ovulfay1.mirror.aliyuncs.com"],
  "dns": ["114.114.114.114","8.8.8.8"]
}

3.1.2 apt-get update 命令过慢

在docker 对应的容器内运行apt-get update 命令，这个命令的作用是同步 /etc/apt/sources.list 和 /etc/apt/sources.list.d 中列出的源的索引，这样才能获取到最新的软件包。运行过程中如果觉得下载速度过慢，可以将sources.list 文件替换成下面下载路径。

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

3.2  运行 apt-get install -y vim 命令即可

apt-get install -y vim