26 May
2025
26 May
'25
12:15 a.m.
It appears that Noel Chiappa <jnc(a)mercury.lcs.mit.edu> said:
but by V5 it had been re-written in C:
https://minnie.tuhs.org/cgi-bin/utree.pl?file=V5/usr/source/s2/sh.c
I had heard that called the Mashey shell, also according to Wikipedia the PWB shell.
That shell had no flow control but it read its input one character at a time and there
was a "goto" program that rewound the input and scanned forward for a label in a
comment. Primitive
but sort of usable.
One of the early usenix tapes has some patches I wrote to add primitive single character
shell variables.
R's,
John