[jonahx]

Even though 120 fits comfortably on the screen, I find it leads to sloppier code than 80 or 90. The latter exerts pressure to "do one thing per line, and make it neat."

Ime this is true of modern langs like ruby or javascript or Go, as well as older langs like bash. But I know this is a religiously contentious subject, so to each his own.

[shakezula]

I like 80 for my Go projects.

Anecdotal, but- It does feel like a good visual approximation and when I start to run close to it I usually pause and figure out if that code needs attention.