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def lisp_eval(x)
	if x == '1'
		1
	elsif x == '#t'
		true
	else
		list = x.gsub(" ", '').chars
		parser(list)
	end
end

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$> git add . -A # adds all files, including deleted files
(file was changed during this time)
$> git checkout -b new_master
$> git status #discovered changed file
$> git add .
$> git commit --amend -C HEAD   # adds file in staging to the most recent commit
$> git branch -D master
$> git checkout -b master
$> git push -f origin master    # blows away existing remote master and replaces with our master

siwka

Maintaining multiple PostrgeSQL versions in one environment

Use Docker

---

Install multiple PostgreSQL versions on your machine

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Essential functions and capabilities of a complete IAM solution:

• SSO or RSO
• automated provisioning and deprovisioning,
• strong authentication,
• full identity governance

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Notes from Docker Deep Dive, Nigel Poulton & dockercom & my stuff

Working with Images

Basic commands

docker version
docker info
rpm -qif /usr/bin/docker