How to automatically answer the question of standard input in Dockerfile __docker

Objective

When you use the Docker build to make your own image, you use the Run command to perform some operations to install some of the necessary software.

And some software installation process will require users to enter yes/no or y/n to determine something before entering the next installation.

This can be solved in dockerfile. if it's an occasion to install with Yum,

RUN Yum install-y xxx

The-y parameter can skip the software query, which is equivalent to answering yes. if it's a scenario where the script is installed

For example, we use the SH anaconda3-4.4.0-linux-x86_64.sh to install anaconda, "annoying" Anaconda will ask four questions, my answer order is enter,yes,enter,yes respectively. So you can write this:

RUN sh-c '/bin/echo-e "\nyes\n\nyes" | SH anaconda3-4.4.0-linux-x86_64.sh '

This is a proven trick.