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Shell & TerminalNews July 11, 2026 2 min read

Bill Joy's C Shell Ships as Part of 2BSD, Introducing Command History

Distributed starting with the second Berkeley Software Distribution in 1979, Bill Joy's C shell introduced features — command history, aliases, filename completion — that nearly every shell since has copied in some form.

#news#csh#bsd

Shell & TerminalDeep Dive July 10, 2026 2 min read

tcsh and csh: Why FreeBSD's Shell Heritage Isn't POSIX

FreeBSD's default shells didn't evolve from the Bourne shell lineage Bash and Zsh belong to — they descend from an entirely separate design philosophy, one built to feel more like C than like a scripting language.

#deep-dive#tcsh#csh