Veera Pendyala spendyala

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Long ago, the first time I read "The Pragmatic Programmer", I read some advice that really stuck with me.

"Don't Use Manual Procedures".

This in the chapter on Ubiquitous Automation. To summarize, they want you to automate all the things.

The trouble was that I hadn't much of an idea how to actually go

	#!/usr/bin/python3
	#
	# usage: python3 docker_descendants.py <image_id> ...

	import sys
	from subprocess import check_output


	def main(images):
	image_ids = set(images)

	# download and unpack distribution
	wget https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-1.9.6-linux-x86_64.tar.bz2
	tar xf phantomjs-1.9.6-linux-x86_64.tar.bz2

	# copy binary
	cd phantomjs-1.9.6-linux-x86_64
	cp bin/phantomjs /usr/local/bin