lwk@qwfys:~$ sudo wget -c -O /etc/bash_completion.d/docker.sh https://github.com/docker/docker-ce/tree/master/components/cli/contrib/completion/bash/docker
[sudo] password for lwk:
--2020-01-10 22:18:26-- https://github.com/docker/docker-ce/tree/master/components/cli/contrib/completion/bash/docker
Resolving github.com (github.com)... 13.250.177.223
Connecting to github.com (github.com)|13.250.177.223|:443... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://github.com/docker/docker-ce/blob/master/components/cli/contrib/completion/bash/docker [following]
--2020-01-10 22:18:28-- https://github.com/docker/docker-ce/blob/master/components/cli/contrib/completion/bash/docker
Reusing existing connection to github.com:443.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: ‘/etc/bash_completion.d/docker.sh’
/etc/bash_completion.d/docker.sh [ <=> ] 1.46M 20.5KB/s in 48s
2020-01-10 22:19:16 (31.3 KB/s) - ‘/etc/bash_completion.d/docker.sh’ saved [1534702]
lwk@qwfys:~$
退出重新登录，即可。
