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Editing text on the command line can both, be a requirement and have its own benefits. In either case it is a good idea to get comfortable with.
Extremely minimal (or highly secure) environments tend to strip text editors out of production images, but that doesn’t actually improve security (cat, echo, mv, and input/output redirection are more than enough to improvise a workable text editor in a pinch). You — like hackers everywhere — will probably just end up installing vim in quite a few docker containers over the course of your life.
