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build and execute command lines from standard input in parallel
RUN apt-get update && \
apt-get install -y parallel
RUN apt-get update && \
apt-get install -y parallel
RUN apk add parallel
RUN pacman -S --noconfirm parallel
RUN apt-get update && \
apt-get install -y parallel
RUN dnf install -y parallel
RUN apt-get update && \
apt-get install -y parallel