From mboxrd@z Thu Jan 1 00:00:00 1970 From: giacomo@tesio.it (Giacomo Tesio) Date: Tue, 17 Oct 2017 18:22:50 +0200 Subject: [9fans] Why Plan 9 uses $ifs instead of $IFS? In-Reply-To: References: Message-ID: Topicbox-Message-UUID: c366f1a2-ead9-11e9-9d60-3106f5b1d025 2017-10-17 18:00 GMT+02:00 Skip Tavakkolian : > On Tue, Oct 17, 2017, 8:05 AM Giacomo Tesio wrote: > >> Really? Just aesthetics? :-o >> > > >> This would flips the question a bit: I wonder why the same designers >> chose uppercase variable names while designing Unix... :-) >> > > Programs can evolve, why not names? There was no expectation that sh > scripts would work in rc. > They can! For sure! But usually they evolve towards a goal... and I'm a curious person.. :-) Also this is not about sh scripts run by rc, but sh script run by an sh shell started by rc. Or, rc scripts run by an rc shell invoked by an sh. Just to explain, for example, you could have an sh script that changes $USER and then invoke psu that would keep using the previous $user. Giacomo -------------- next part -------------- An HTML attachment was scrubbed... URL: