Published online by Cambridge University Press: 10 July 2020
Few things are more frustrating than constructing a program that is almost correct, only to lose it at the last minute through a mistake. This chapter discusses manual processes for undoing mistaken edits and for saving your best program so far, and how to take the next step to using a version-control system or configuration management system. It also covers how to manage code that you have written that is not useful right now, but may be so later.
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