Docker rm命令用来删除容器，而“docker rmi”删除镜像（i为image）。docker rm命令的帮助信息：
[root@localhost ~]# docker rm --help Usage: docker rm [OPTIONS] CONTAINER [CONTAINER...] Remove one or more containers Options: -f, --force Force the removal of a running container (uses SIGKILL) -l, --link Remove the specified link -v, --volumes Remove the volumes associated with the container
其中：
-f, --force 强制删除一个正在运行的容器（使用 SIGKILL）
-l, --link 删除指定的连接
-v, --volumes 删除与容器关联的卷
实例：使用容器ID删除已经停止的容器，如下：
[root@localhost ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 5a97a6b111af memcached:1.4.21 "memcached" 4 minutes ago Exited (137) 3 minutes ago quirky_bhabha [root@localhost ~]# docker rm 5a97a6b111af 5a97a6b111af
上面，我们使用“docker ps -a”查看所有容器。然后使用“docker rm 5a97a6b111af”删除容器，该容器的状态为“Exited (137) 3 minutes ago”表示已停止。
如果我们删除一个正在运行的容器呢？
[root@localhost ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES bf73eeb136ce ubuntu "/bin/bash" 4 seconds ago Up 3 seconds gallant_turing [root@localhost ~]# docker rm bf73eeb136ce Error response from daemon: You cannot remove a running container bf73eeb136ce1c76dd836bcd1df20cd642d39140c07151c797de81914970ba6c. Stop the container before attempting removal or force remove
但是抛出了错误“You cannot remove a running container...”，大概意思为“不能删除正在运行的容器”。我们可使用“-f”选项强制删除容器，如下：
[root@localhost ~]# docker rm -f bf73eeb136ce bf73eeb136ce
问题来了，怎样批量删除容器呢？
批量删除容器共有两种方式：
（1）方式一：使用“docker rm -f $(docker ps -aq)”，如下：
[root@localhost ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 5c27f0d18a73 centos "/bin/bash" 8 minutes ago Exited (137) 7 minutes ago festive_keldysh af9ba2baa42e centos "/bin/bash" 10 minutes ago Exited (137) 9 minutes ago musing_cerf b60d1784c305 ubuntu "/bin/bash" 10 minutes ago Exited (137) 7 minutes ago naughty_wozniak ece33456afe1 centos "/bin/bash" 11 minutes ago Exited (137) 11 minutes ago sharp_hopper 574ad33d0772 ubuntu "/bin/bash" 11 minutes ago Exited (137) 11 minutes ago blissful_jang ddfd18831621 centos "/bin/bash" 22 minutes ago Exited (137) 12 minutes ago gifted_lovelace c100b8e45fe8 ubuntu "/bin/bash" 22 minutes ago Exited (0) 15 minutes ago goofy_jepsen 9ee966dd7f83 ubuntu "/bin/bash" 31 minutes ago Exited (0) 31 minutes ago goofy_shannon 035d9d7e276e centos "/bin/bash" 32 minutes ago Exited (137) 24 minutes ago kind_bohr [root@localhost ~]# docker rm -f $(docker ps -aq) 5c27f0d18a73 af9ba2baa42e b60d1784c305 ece33456afe1 574ad33d0772 ddfd18831621 c100b8e45fe8 9ee966dd7f83 035d9d7e276e
（2）方式二：使用“docker ps -aq | xargs docker rm -f”，如下：
[root@localhost ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 16d0474f9abb memcached:1.4.21 "memcached" 7 seconds ago Up 7 seconds 11211/tcp vibrant_hellman dc38deba0bb3 centos "/bin/bash" 10 seconds ago Up 9 seconds inspiring_johnson 90c97e8ade06 ubuntu "/bin/bash" 13 seconds ago Up 12 seconds hungry_nash [root@localhost ~]# docker ps -aq | xargs docker rm -f 16d0474f9abb dc38deba0bb3 90c97e8ade06
