Ubuntu系统执行“docker ps“出现“permission denied“

当我们安装好Ubuntu时,使用鱼香ros一键安装指令

wget http://fishros.com/install -O fishros && . fishros 

一键安装Docker后,执行"docker ps"出现"permission denied"

see@lina:~$ docker ps
permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fdocker.sock/v1.24/containers/json": dial unix /var/run/docker.sock: connect: permission denied

解决办法:

1.添加docker用户组

sudo groupadd docker

2.将登陆用户添加到docker用户组

sudo gpasswd -a $USER docker

3.更新用户组

newgrp docker

4.再次运行 docker ps

see@lina:~$ docker ps
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES

这次修改是在Ubuntu双系统

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