Unix

Trends

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cp: -r or -R? A Unix flag debate●cp: -r or -R?Yhn818 min ago
A technical debate is under way over whether to use the lowercase -r or uppercase -R flag when copying directories with the cp command on Unix-like systems. While both forms work on GNU and BSD implementations, the uppercase -R is the POSIX-standard option, and developers disagree on which one should be preferred in scripts and documentation.
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SDF, the internet's oldest public access Unix system, turns heads again●SDF Public Access Unix System ... est. 1987Yhn Science Space Policy10526 min ago
SDF, a public access Unix system founded in 1987, offers free shell accounts to anyone on the internet. Users are sharing it as one of the longest-running community-run computing services still online, predating the modern web and maintained largely by volunteers. Many recall it as a rare surviving piece of early internet culture where anyone could get a real Unix login at no cost.