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jq — https://jqlang.github.io/jq/ — "like sed for JSON data"
There are several options available for installing jq. I prefer to use Homebrew:
brew install jq
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# non root user example for alpine | |
# | |
# usage: | |
# $ docker build --build-arg "USER=someuser" --tag test . | |
# $ docker run --rm test | |
FROM alpine | |
ARG USER=default | |
ENV HOME /home/$USER |