getopts
GNU Bourne Again SHell
RUN apt-get update && \
apt-get install -y bash
RUN apt-get update && \
apt-get install -y bash
RUN apk add bash
RUN pacman -S --noconfirm bash
RUN apt-get update && \
apt-get install -y bash
RUN yum install -y bash
RUN dnf install -y bash
RUN apt-get update && \
apt-get install -y bash