16 Sep
2022
16 Sep
'22
11:04 p.m.
On Fri, 1 Jul 2022, Matthias Bruestle wrote:
Date: Fri, 1 Jul 2022 08:17:32
From: Matthias Bruestle <m(a)mbsks.franken.de>
To: TUHS <tuhs(a)tuhs.org>
Subject: [TUHS] Re: "9 skills our grandkids won't have" - Is this a TUHS
topic?
I know something!
On Fri, Jul 01, 2022 at 04:05:30PM +0300, Ori Idan wrote:
https://en.wikipedia.org/wiki/Software_flow_control
But I don't know the answer to Ctrl-D. :( And also the bus error
and maybe the segmentation fault if it hasn't to do with a segment
register.
^D = ASCII EOT
ASCII trick, check the ascii(7) manpage, look at the octal set. For any
CTRL-<letter>, drop the high bit and look at that entry.
D -> 104
EOT -> 004 (End of Transmission)
S -> 123
DC3 -> 024 (Teletypes used this as XOFF)
Q -> 121
DC1 -> 021 (Teletypes used this as XON)
No one asked about these, but my favorites:
@ -> 100
NUL -> 000
[ -> 133
esc -> 033 (ASCII esc)
--
Michael Parson
Pflugerville, TX
o why
CTRL/S and CTRL/Q are used for flow control in a shell command
line session
Also would be happy to know.