1
cp: -r or -R?
A question like this recently came up again. I once tried to find an answer, but only posted it in some "forum" a decade ago, and I think it's worth saving this little bit of trivia from digital nirvana.
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2
Visualizing Binary Files
It's all black and white, basically. A while ago, Vim's xxd gained the ability to color the output (this is not included in Vim Classic , which I use):
3
Novellas with Groff
Don't even think about it: I won't publish this. Nor send it to you privately, which is mostly the same as publishing it.