Execute a shell script that in turn runs a Python program, followed by an R program

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I've created a shell script that first runs a Python program to perform data pre-processing and then I'm trying to run an R program. I'm using Docker images for this:

FROM r-base:latest
FROM python
COPY . /usr/local/src/scripts
WORKDIR /usr/local/src/scripts
CMD ["./thisscript.sh"]

Inside thisscript.sh I've use the R CMD ... syntax for running my R script. But when I run the docker image, I get the following error:

./thisscript.sh: line 8: R: command not found

Any help?

Feb 6 in Data Analytics by Tyrion anex
• 8,280 points
27 views

1 answer to this question.

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You have two FROM commands in your Docker image. The FROM command is used to set the base image that your Dockerfile is created upon. You should always have only one of these. If you require additional tools that aren't in the base image, run commands that use platform-dependent package managers, like these:

RUN apt-get update && apt-get install -y \
    package-foo \
    package-bar

answered Feb 6 by Sophie may
• 9,330 points

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