docker image ls 查看镜像 。
[root@localhost ~]# docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 5a3221f0137b 10 days ago 126MB
docker run -it nginx /bin/bash 从镜像中启动 ,会进入到doker内部,使用Ctrl-PQ组合键退出,不会杀死容器。
[root@localhost ~]# docker run -it nginx /bin/bash
root@e5f373447c9f:/#
docker exec -it nginx_1 /bin/bash 进入运行中的docker。
[root@localhost ~]# docker exec -it nginx_1 /bin/bash
root@9da42ad3c93e:/#
docker exec -it nginx_1 ls 在docker中执行命令
[root@localhost ~]# docker exec -it nginx_1 ls
bin dev home lib64 mnt proc run srv tmp var
boot etc lib media opt root sbin sys usr
docker rename nginx_1 nginx_2 重命名docker
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9da42ad3c93e nginx "/bin/bash" 9 minutes ago Up 9 minutes 80/tcp nginx_1
[root@localhost ~]# docker rename nginx_1 nginx_2
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9da42ad3c93e nginx "/bin/bash" 10 minutes ago Up 10 minutes 80/tcp nginx_2