On 11/1/19 12:25 PM, David Riley via vcf-midatlantic wrote:
I seem to recall that vi relied on ed and ex. In Linux I don't this is the case any longer. I don't know about BSD but would expect that this is the case there also.
Both BSD and SysV (which a 3B1 would likely be running) have vi. Beware, though: it is not the vi you're probably used to, it runs in line mode (not hugely different from ed).
No, that's "ex". The ex editor was later extended with a "visual" mode, which is run when ex is invoked as "vi", by looking at argv[0]. The visual mode is the full-screen mode that everyone is used to. And the 3B1 runs System V release 2, with some minor BSD extensions. It's not a particularly "early" UNIX. -Dave -- Dave McGuire, AK4HZ New Kensington, PA