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Infrastructure as code: Once we start writing programs to configure machines, we get some benefits right away. We can adopt the tools and techniques that regular programmers - - who write code in Ruby or Java, for example - - have used for years:
Powerful editing and refactoring tools
Version control
Tests
Pair programming
Code reviews
This can make us more agile and flexible as system administrators, able to deal with fast-changing requirements and deliver things quickly to the business. We can also produce higher-quality, more reliable work.
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