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BSD wasn't open source back then, you needed to have an AT&T source code licence as well.
by rjsw 6y ago
BSD wasn't open source back then, you needed to have an AT&T source code licence as well.
- mprovost 6y agoRight, if you look at the early BSD sources [0] it's not a complete OS - there's no kernel. It's just a bunch of utilities that you were supposed to install on an already running AT&T system. [0] https://github.com/dspinellis/unix-history-repo/tree/BSD-1-Snapshot-Development https://github.com/dspinellis/unix-history-repo/tree/BSD-1-S...
- mpol 6y agoAlso, ed wasn't open source. Vi still used ed, so even of vi itself was open source, it wasn't completely functional. It was only around 2001 / 2003 when Caldera open sourced some UNIX utilities under an open source license as part of the Heirloom project. Parts of that were ed and mailx.