shell bugs

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4 total messages Started by Eric Gisin Wed, 20 Mar 1991 23:32

#364

Author: Eric Gisin
Date: Wed, 20 Mar 1991 23:32

22 lines
820 bytes

The \ character does not work in the IFS variable.
The System Vr3.2 and Sun OS 4 shells have this bug.
The V7 shell did not. It was probably introduced in the 8-bit clean version.
The following demonstrates the bug.

	# echo arguments, one per line
	args() {
		for _ do echo_r "$_"; done
	}
	# echo without SysV expansions
	echo_r() {
		cat <<- .
		$*
		.
	}
	IFS='\'
	thing='a\b\\c'
	args $thing
-->	a\b\\c

In System V/386 r3.2, the shell nices all background jobs.
This is unacceptable for non-interactive shells.

Re: shell bugs

#365

Author: Jean-Pierre Radley
Date: Fri, 22 Mar 1991 05:30

9 lines
751 bytes

In article <1991Mar20.233210.7410@mks.com> eric@mks.com (Eric Gisin) writes:
>In System V/386 r3.2, the shell nices all background jobs.
>This is unacceptable for non-interactive shells.

On SCO UNIX 3.2, the niceness is configurable by modifying
/etc/defaults/queuedefs. Perhaps your system does not have such a file?

 Jean-Pierre Radley   NYC Public Unix   jpr@jpradley.jpr.com   CIS: 72160,1341

Re: shell bugs

#366

Author: Guy Harris
Date: Wed, 27 Mar 1991 19:01

17 lines
1303 bytes

>>In System V/386 r3.2, the shell nices all background jobs.
>>This is unacceptable for non-interactive shells.
>
>On SCO UNIX 3.2, the niceness is configurable by modifying
>/etc/defaults/queuedefs. Perhaps your system does not have such a file?

If modifying that file actually changes what the *Bourne shell* does
with jobs run with "&", rather than changing the niceness of jobs run
with "at" or "batch", that's an SCO-ism; the original poster's system
probably has a "queuedefs" file, or can have one, but unless they have a
system tweaked to make the shell look at that file, it won't have any
effect.

Hopefully, S5R4's Bourne shell won't do this (at least not when it's run
as "jsh"), given that, in S5R4, as in other systems with BSD-style or
POSIX-style job control, "background" is a temporary state, not a way of
life....

Re: shell bugs

#367

Author: Andrew H. Marrinson
Date: Tue, 02 Apr 1991 21:24

10 lines
660 bytes

guy@auspex.auspex.com (Guy Harris) writes:

>Hopefully, S5R4's Bourne shell won't do this [...]

It doesn't.
--
		Andrew H. Marrinson
		Icom Systems, Inc.
		Wheeling, IL, USA
		(andy@icom.icom.com)

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