4 Jan
2023
4 Jan
'23
9:54 p.m.
Indeed. MiniUnix had no hardware pipes, but the shell “simulated” it
by writing to a intermediate temp file.
------ Original Message ------
From "Ralph Corderoy" <ralph(a)inputplus.co.uk>
To tuhs(a)tuhs.org
Date 1/4/2023 10:21:02 AM
Subject [TUHS] Re: A few comments on porting the Bourne shell
Hi John,
Making shell scripts portable means not using
pipelines
No it doesn't...
because given "foo | bar", kshNN and
zsh execute foo in a subshell and
bar in the top-level shell, whereas in other shells, both foo and bar
execute in subshells.
...because a lot of the time that doesn't matter.
--
Cheers, Ralph.