[TUHS] What was your "Aha, Unix!" moment?

Abhinav Rajagopalan abhinavrajagopalan at gmail.com
Wed Oct 23 00:22:32 AEST 2019

On a somewhat related note, if someone could shine some light on, if such
chdir() which wasn't yet integrated into the shell function independent of
fork() as in did fork() just spawn off a new child shell if one did chdir()
or more generally how did processes interact when/if more than one child
existed. I know PDP-7 had some archaic IPC but haven't gotten around to
grokking fork.s or others to understand the actual operation.

On Tue, 22 Oct 2019 at 7:06 PM, Noel Chiappa <jnc at mercury.lcs.mit.edu>

>     > From: Sean Dwyer
>     > chdir seems to be a syscall in 7 (sys4.c)
> It's been a system call forever, see e.g.:
>   https://minnie.tuhs.org//cgi-bin/utree.pl?file=V1/man/man2/chdir.2
> (And the working dir was a property of the process, not data in the shell.)
>      Noel

Abhinav Rajagopalan
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://minnie.tuhs.org/pipermail/tuhs/attachments/20191022/7b8f4654/attachment.html>

More information about the TUHS mailing list