Docker exec Requires minimum of 2 arguments

Question

I am using a shell script on Linux in order to execute some Docker commands :

docker exec -t -i test1 passwd
...
docker exec -t -i test2 passwd

And on the second exec command I receive the following error :

docker: "exec" requires a minimum of 2 arguments.

What am I doing wrong, or what am I missing?

Thank you in advance.

Harold Castillo · Accepted Answer · 2021-12-06T00:40:52.100

22

I have had the same mistake

docker exec -it gallant_bose

C:\Program Files\Docker Toolbox\docker.exe: "exec" requires a minimum of 2 arguments. See 'C:\Program Files\Docker Toolbox\docker.exe exec --help'. Usage: docker exec [OPTIONS] CONTAINER COMMAND [ARG...] Run a command in a running container

The solution, add the command bash in my case:

$ docker exec -it gallant_bose bash

root@e747ffecc84d:/#

Best wishes!

Update

Also, you can execute docker exec -it gallant_bose /bin/bash for some images

edited Dec 06 '21 at 00:40

answered Aug 01 '17 at 05:58

Harold Castillo

2,006
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Thank you! After the addition of 'bash' everything worked. – Aug 02 '17 at 14:13

score 2 · Answer 2 · answered Mar 17 '16 at 14:01

2

Are you sure that test2 exists? I don't see any error in your command. If problem persists, can you provide the docker ps and docker images output please?

answered Mar 17 '16 at 14:01

Sylvain GIROD

836
1
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girod _s the container test2 exists, and the image that I am using (ubuntu based) is present when I run docker images. – Mar 17 '16 at 19:05

Docker exec Requires minimum of 2 arguments

2 Answers2

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