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2023-09-30

• 19:17 UTC (new) 2023-09-30 Confirming potentially dangerous actions . . . . mbork – A common situation is when I want to do something on my computer with possibly destructive consequences, like deleting a file, truncating a database table etc. One common approach to making sure this won’t happen accidentally is to require the user to press y or even type yes (this is what Emacs does with its y-or-n-p and yes-or-no-p functions). Some time ago I had a similar need in a shell script. I was afraid, however, that even requiring the user to type yes is not enough – it is easy to condition oneself to type a three-letter word without much thinking, after all.

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