[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
The following issue has a resolution that has been APPLIED. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Applied Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Approved Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 Resolution: Accepted As Marked Fixed in Version: == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2019-10-23 10:17 UTC == Summary:Which option flags should appear in $- ? == Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 2018-04-26 11:44 McDutchie Note Added: 0004002 2018-04-26 12:12 joerg Note Added: 0004003 2018-04-26 12:23 joerg Note Edited: 0004003 2018-04-26 12:47 kreNote Added: 0004004 2018-04-26 12:55 kreNote Added: 0004005 2018-04-26 12:59 joerg Note Edited: 0004003 2018-04-26 13:06 joerg Note Added: 0004006 2018-04-26 13:58 McDutchie Note Added: 0004007 2018-04-26 13:59 kreNote Added: 0004008 2018-04-26 14:20 kreNote Added: 0004009 2018-04-26 14:34 joerg Note Edited: 0004006 2018-04-26 14:39 joerg Note Added: 0004010 2018-04-26 14:40 joerg Note Edited: 0004010 2018-04-26 16:03 kreNote Added: 0004012 2018-04-26 16:22 kreNote Edited: 0004012 2018-04-26 19:03 McDutchie Note Added: 0004013 2018-04-26 19:08 McDutchie Note Deleted: 0004013 2018-10-11 15:18 ajosey Interp StatusPending => Proposed 2018-10-11 15:18 ajosey
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
The following issue has been UPDATED. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Approved Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-11-12 19:48 UTC == Summary:Which option flags should appear in $- ? == -- (0004165) ajosey (manager) - 2018-11-12 19:48 http://austingroupbugs.net/view.php?id=1039#c4165 -- Interpretation approved: 12 November 2018 Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 2018-04-26 11:44 McDutchie Note Added: 0004002 2018-04-26 12:12 joerg Note Added: 0004003 2018-04-26 12:23 joerg Note Edited: 0004003 2018-04-26 12:47 kreNote Added: 0004004 2018-04-26 12:55 kreNote Added: 0004005 2018-04-26 12:59 joerg Note Edited: 0004003 2018-04-26 13:06 joerg Note Added: 0004006 2018-04-26 13:58 McDutchie Note Added: 0004007 2018-04-26 13:59 kreNote Added: 0004008 2018-04-26 14:20 kreNote Added: 0004009 2018-04-26 14:34 joerg Note Edited: 0004006 2018-04-26 14:39 joerg Note Added: 0004010 2018-04-26 14:40 joerg Note Edited: 0004010 2018-04-26 16:03 kreNote Added: 0004012 2018-04-26 16:22 kreNote Edited: 0004012 2018-04-26 19:03 McDutchie Note Added: 0004013
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
The following issue has been UPDATED. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Proposed Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-10-11 15:18 UTC == Summary:Which option flags should appear in $- ? == -- (0004147) ajosey (manager) - 2018-10-11 15:18 http://austingroupbugs.net/view.php?id=1039#c4147 -- Interpretation Proposed: 11 Oct 2018 Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 2018-04-26 11:44 McDutchie Note Added: 0004002 2018-04-26 12:12 joerg Note Added: 0004003 2018-04-26 12:23 joerg Note Edited: 0004003 2018-04-26 12:47 kreNote Added: 0004004 2018-04-26 12:55 kreNote Added: 0004005 2018-04-26 12:59 joerg Note Edited: 0004003 2018-04-26 13:06 joerg Note Added: 0004006 2018-04-26 13:58 McDutchie Note Added: 0004007 2018-04-26 13:59 kreNote Added: 0004008 2018-04-26 14:20 kreNote Added: 0004009 2018-04-26 14:34 joerg Note Edited: 0004006 2018-04-26 14:39 joerg Note Added: 0004010 2018-04-26 14:40 joerg Note Edited: 0004010 2018-04-26 16:03 kreNote Added: 0004012 2018-04-26 16:22 kreNote Edited: 0004012 2018-04-26 19:03 McDutchie Note Added: 0004013
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-04-26 19:03 UTC == Summary:Which option flags should appear in $- ? == -- (0004013) McDutchie (reporter) - 2018-04-26 19:03 http://austingroupbugs.net/view.php?id=1039#c4013 -- That's a good point though, that 'set -$-' works if only 'c' is not set. I hadn't considered (or tried) that. Your old scripts should be fine in practice then, as presumably you're not entering them manually on the command line. I still don't think an obsolete workaround for a decades-old bug merits being standardised though. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 2018-04-26 11:44 McDutchie Note Added: 0004002 2018-04-26 12:12 joerg Note Added: 0004003 2018-04-26 12:23 joerg Note Edited: 0004003 2018-04-26 12:47 kreNote Added: 0004004 2018-04-26 12:55 kreNote Added: 0004005 2018-04-26 12:59 joerg Note Edited: 0004003 2018-04-26 13:06 joerg Note Added: 0004006 2018-04-26 13:58 McDutchie Note Added: 0004007 2018-04-26 13:59 kreNote Added: 0004008 2018-04-26 14:20 kreNote Added: 0004009 2018-04-26 14:34 joerg Note Edited: 0004006 2018-04-26 14:39 joerg Note Added: 0004010 2018-04-26
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-04-26 16:03 UTC == Summary:Which option flags should appear in $- ? == -- (0004012) kre (reporter) - 2018-04-26 16:03 http://austingroupbugs.net/view.php?id=1039#c4012 -- I have no idea why this issue is still under discussion, can we not just stop? It doesn't really matter why I used to use -$- (it was in my sh code all over the place which is why I would have preferred to keep the idiom, but I think I have removed it all now). I know that the original sh did not include 'c' in $- - that's why -$- was able to work (though the one liners that tend to be used with sh -c would rarely have needed it anyway.) And I know there was no "set +". I wasn't really aware of -r (that was just done when the name was rsh, I don't believe that was ever in $- in the early shell, not that I would have cared, or noticed, since (that) rsh was never of any interest). I believe "set +o" is much more recent. I also don't believe there are any "forbidden" flags, there are some that cannot be set in some shells -- but can be in others - though not always with any effect,. The 's' flag in the NetBSD shell is essentially a 1 bit variable - scripts (if they're insane) can use it however they like, it can be set/reset but that does nothing (except reset the state of the shell at startup, if it has not been changed). If the shell is reading stdin, it is reading stdin, and turning off a flag does not change that (where otherwise would it read the next command from?) Nor does turning it on cause the shell to suddenly leave its script and start reading stdin. I suppose it could just be left out of 'set' but then it would need to be special cased in command line processing (as -c requires) and that would take extra code (and so introduce more bugs) - easier to just set it at startup, then leave it and ignore it. Unless there is really some problem with the accepted text, which I do not believe there is, can't we just concentrate on issues that need actual resolution, rather than just making noise? Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-04-26 14:39 UTC == Summary:Which option flags should appear in $- ? == -- (0004010) joerg (reporter) - 2018-04-26 14:39 http://austingroupbugs.net/view.php?id=1039#c4010 -- Re: Bugnote:4009 It is a bit more complex: The original Bourne Shell did not include (and still does not) "c" in $- for sh -c. The original Bourne Shell did allow set -r but did not yet support set +x. Later set +o was added and since this was a security problem with the -r flag, some flags (besides "c") have been forbidden with set +-. The forbidden flags today are "sicrp" Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 2018-04-26 11:44 McDutchie Note Added: 0004002 2018-04-26 12:12 joerg Note Added: 0004003 2018-04-26 12:23 joerg Note Edited: 0004003 2018-04-26 12:47 kreNote Added: 0004004 2018-04-26 12:55 kreNote Added: 0004005 2018-04-26 12:59 joerg Note Edited: 0004003 2018-04-26 13:06 joerg Note Added: 0004006 2018-04-26 13:58 McDutchie Note Added: 0004007 2018-04-26 13:59 kreNote Added: 0004008 2018-04-26 14:20 kreNote Added: 0004009 2018-04-26 14:34 joerg Note Edited: 0004006 2018-04-26 14:39 joerg Note
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-04-26 14:20 UTC == Summary:Which option flags should appear in $- ? == -- (0004009) kre (reporter) - 2018-04-26 14:20 http://austingroupbugs.net/view.php?id=1039#c4009 -- Re note: 4007. No, I did not miss the reference to the 1988 vintage sh test. That's much too late, I cannot even imagine what might have been done to that shell (that was probably a SysVR3 shell, which had lots of changes). The one I am referring to was the original 7th edition (and 32V) shell from Bell Labs. In that, there was no --, to set the args, "set a b c" would fail if "a" happened to start with a '-' (it would be interpreted as option flags). The workaround was "set - a b c" but that would reset all the flags (there was no "set +..." in that shell, the when a '-' option was given to "set" it cleared the flags, and then set those given.) Hence, "set -$- a b c" - set the flags back to what they were, and then set the positional parameters. I used this long before ash was needed (which was between 4.3BSD and 4.4 at the time of the lawsuit - sometime early/mid 90's). Get yourself an original 4.2BSD /bin/sh and test that one - Berkeley did almost nothing to sh (everyone used csh) so that should be quite close to the v7 version. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 2018-04-26 11:44 McDutchie Note Added: 0004002 2018-04-26 12:12 joerg Note Added: 0004003 2018-04-26 12:23 joerg Note Edited: 0004003
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-04-26 13:58 UTC == Summary:Which option flags should appear in $- ? == -- (0004007) McDutchie (reporter) - 2018-04-26 13:58 http://austingroupbugs.net/view.php?id=1039#c4007 -- kre wrote: > It certainly did work on old Bourne > shells (and that will be why it worked in ash and its descendants, > I would assume.) Did you miss that I just tested it on a 1988 Bourne shell (Xenix)? It doesn't work. To me this looks like an old ash-specific workaround for an ash-specific bug. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 2018-04-26 11:44 McDutchie Note Added: 0004002 2018-04-26 12:12 joerg Note Added: 0004003 2018-04-26 12:23 joerg Note Edited: 0004003 2018-04-26 12:47 kreNote Added: 0004004 2018-04-26 12:55 kreNote Added: 0004005 2018-04-26 12:59 joerg Note Edited: 0004003 2018-04-26 13:06 joerg Note Added: 0004006 2018-04-26 13:58 McDutchie Note Added: 0004007 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-04-26 13:06 UTC == Summary:Which option flags should appear in $- ? == -- (0004006) joerg (reporter) - 2018-04-26 13:06 http://austingroupbugs.net/view.php?id=1039#c4006 -- I added "i" to $- for an interactive bosh in June 2012 because it seemed to be useful. I however do't understand why "set -c" should be allowed or why $- should not include "c" for sh -c. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 2018-04-26 11:44 McDutchie Note Added: 0004002 2018-04-26 12:12 joerg Note Added: 0004003 2018-04-26 12:23 joerg Note Edited: 0004003 2018-04-26 12:47 kreNote Added: 0004004 2018-04-26 12:55 kreNote Added: 0004005 2018-04-26 12:59 joerg Note Edited: 0004003 2018-04-26 13:06 joerg Note Added: 0004006 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-04-26 12:55 UTC == Summary:Which option flags should appear in $- ? == -- (0004005) kre (reporter) - 2018-04-26 12:55 http://austingroupbugs.net/view.php?id=1039#c4005 -- Re note 4003. Joerg, there is no conflict. -i is an option to sh (see the utilities page for sh) note "or implicitly by the shell" in the text you quoted. If the shell implictly sets the 'i' flag (because it is started in a way that meets the requirements of being interactive) so should always have been included in $- It was just that most shells concentrated only on the flags defined to be able to be used with the "set" builtin, and not necessarily on those which are only relevant on the command line. It was to clarify that that the original bug report was submitted. If your sh doesn't set 'i' - fix it. It was always broken. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 2018-04-26 11:44 McDutchie Note Added: 0004002 2018-04-26 12:12 joerg Note Added: 0004003 2018-04-26 12:23 joerg Note Edited: 0004003 2018-04-26 12:47 kreNote Added: 0004004 2018-04-26 12:55 kreNote Added: 0004005 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-04-26 12:47 UTC == Summary:Which option flags should appear in $- ? == -- (0004004) kre (reporter) - 2018-04-26 12:47 http://austingroupbugs.net/view.php?id=1039#c4004 -- Re note 4002 ... the resolution of this (note 3617) is fine. I have more or less given up on -$- ... it was useful back in the original Bourne shell days, when there were all kinds of bugs in the "set" command (way before -- existed - and long before ash was even a dream, or the need for it was anywhere on the horizon - very early 80's or late 70's). It certainly did work on old Bourne shells (and that will be why it worked in ash and its descendants, I would assume.) The comments that followed note 3617 related to comments I saw on the etherpad from when this bug was discussed. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 2018-04-26 11:44 McDutchie Note Added: 0004002 2018-04-26 12:12 joerg Note Added: 0004003 2018-04-26 12:23 joerg Note Edited: 0004003 2018-04-26 12:47 kreNote Added: 0004004 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-04-26 12:12 UTC == Summary:Which option flags should appear in $- ? == -- (0004003) joerg (reporter) - 2018-04-26 12:12 http://austingroupbugs.net/view.php?id=1039#c4003 -- Interesting... this new requirement is in conflict with: - (Hyphen.) Expands to the current option flags (the single-letter option names concatenated into a string) as specified on invocation, by the set special built-in command, or implicitly by the shell. and thus should be removed again since it would make existing implementations non-conforming. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 2018-04-26 11:44 McDutchie Note Added: 0004002 2018-04-26 12:12 joerg Note Added: 0004003 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2018-04-26 11:44 UTC == Summary:Which option flags should appear in $- ? == -- (0004002) McDutchie (reporter) - 2018-04-26 11:44 http://austingroupbugs.net/view.php?id=1039#c4002 -- kre, I don't think you're going to get a guarantee that the 'set -$-' workaround is a no-op, because in fact it fails on most current and historical shells. Historical: $ sh -c 'set -$-'# Bourne shell, Xenix (1988) sh: -s: bad option(s) $ sh -c 'set -$-'# Bourne shell, Solaris 10.3 (2010) sh: -s: bad option(s) $ ksh -c 'set -$-' # ksh88, Solaris 10.3 (2010) ksh: -shc: bad option(s) Presumably it works on the historical ash (Almquist shell) as it does on all current derivatives, but I don't have any historical ash I can test. Current: $ ksh -c 'set -$-' # ksh93 ksh: set: -c: unknown option Usage: set [-sabefhkmnprtuvxBCGH] [-A name] [-o[option]] [arg ...] $ ksh -c 'set -$-' # NetBSD ksh (pdksh) ksh: set: -c: unknown option ksh: set: $ ksh -c 'set -$-' # OpenBSD sh and ksh (pdksh) ksh: set: -c: unknown option $ mksh -c 'set -$-' mksh: set: -c: unknown option $ bash -c 'set -$-' bash: line 0: set: -c: invalid option set: usage: set [-abefhkmnptuvxBCHP] [-o option-name] [--] [arg ...] $ yash -c 'set -$-' set: the cmdline option cannot be changed once the shell has been initialized It only works on: - NetBSD sh (of course) - FreeBSD sh - dash - Busybox ash - zsh ...so basically on Almquist derivatives plus zsh. That minority is nowhere close to establishing de facto standard behaviour. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2017-03-17 13:05 UTC == Summary:Which option flags should appear in $- ? == -- (0003636) kre (reporter) - 2017-03-17 13:05 http://austingroupbugs.net/view.php?id=1039#c3636 -- Re: 3634 - of course, disabling options disables the functionality. For a more mundane example, which applies everywhere, if a script does set +x (either explicitly, or because of set +$-) then a user attempting to debug the script with "sh -x script" is going to be defeated (or at least annoyed.) Actions have consequences, and everything that is done has the potential to cause some side effect elsewhere. But once again, I do not need a tutorial on why I should not be doing set +$- in my scripts, what I would like, is for some kind of guarantee that "set -$-" will remain a no-op. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 2017-03-17 13:05 kreNote Added: 0003636 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2017-03-17 12:51 UTC == Summary:Which option flags should appear in $- ? == -- (0003634) joerg (reporter) - 2017-03-17 12:51 http://austingroupbugs.net/view.php?id=1039#c3634 -- In the recent Bourne Shell, P is the mode to switch on fine grained privileges behavior for the Solaris kernel mode privs. If you turn this off, you may no longer be able to e.g. run privileged backup programs if you do what you propose inside the backup script. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 2017-03-17 12:51 joerg Note Added: 0003634 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2017-03-17 12:07 UTC == Summary:Which option flags should appear in $- ? == -- (0003630) kre (reporter) - 2017-03-17 12:07 http://austingroupbugs.net/view.php?id=1039#c3630 -- Re: If such a shell implements a one-letter equivalent for the "posix" option, set +$- would turn POSIX compliance off. If the shell implementer was half way rational, the one letter flag equivalent of such an option would enable "extended mode" and turning it off would be equivalent to "set -o posix". So, if P is the flag for posix mode, P in $- would mean not posix, and set +P would be the same as "set -o posix". Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 2017-03-17 10:46 kreNote Added: 0003624 2017-03-17 10:54 joerg Note Added: 0003625 2017-03-17 12:07 kreNote Added: 0003630 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2017-03-17 09:09 UTC == Summary:Which option flags should appear in $- ? == -- (0003622) geoffclare (manager) - 2017-03-17 09:09 http://austingroupbugs.net/view.php?id=1039#c3622 -- Executing set +$- is not something we should encourage applications to do. There can be option letters relating to extensions in $-, so by executing set +$- (if it succeeds) the application has made use of an extension and can no longer rely on the shell behaving as described in the standard. Applications should use set +... only to turn off specific options that they want to turn off. They cannot expect "turn off all options" to achieve something useful or sensible in all implementations. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 2017-03-17 09:09 geoffclare Note Added: 0003622 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2017-03-16 18:07 UTC == Summary:Which option flags should appear in $- ? == -- (0003620) kre (reporter) - 2017-03-16 18:07 http://austingroupbugs.net/view.php?id=1039#c3620 -- You are almost certainly correct about the original Bourne shell and -i, but it was hardly relevant. In normal use, the issue only arose in scripts (there were no functions), and your typical script is not run with sh -i, nor does it (attempt to) "set -i", so even if there had been a problem, I would never have noticed it. The effect of the way that it is now, is that with many shells, scripts that I have had for 30 years or more, no longer work (with some shells - fortunately, with the shell I maintain, and use almost exclusively for scripts, it all works, which you might think is a happy accident...) Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 2017-03-16 17:38 joerg Note Edited: 0003619 2017-03-16 18:07 kreNote Added: 0003620 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2017-03-16 17:31 UTC == Summary:Which option flags should appear in $- ? == -- (0003619) joerg (reporter) - 2017-03-16 17:31 http://austingroupbugs.net/view.php?id=1039#c3619 -- What you like to see here was never possible with ksh88 - the role model for POSIX It not even work with the historic Bourne Shell, if you called "sh -i". You may believe what your memory tells you because the historic Bourne Shell did not automatically include -i for interactive shells. Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 2017-03-16 17:31 joerg Note Added: 0003619 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
A NOTE has been added to this issue. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2017-03-16 17:16 UTC == Summary:Which option flags should appear in $- ? == -- (0003618) kre (reporter) - 2017-03-16 17:16 http://austingroupbugs.net/view.php?id=1039#c3618 -- I agree to what is being proposed for the substantive part of the standard, but it appears (from the etherpad, and the resolution) that the point of this issue was missed. That is, once upon a time, it used to be possible to do set -$- and expect it would work (while being a no-op), or set +$- to clear all flags set (whether this clears the i or m flags is not important for current purposes - what matters is whether it generates a syntax error from the shell). The problem is that shells that include 'c' in particular in $- (or some of them) later object to "set -c" (which is in itself, not surprising). That makes set -$- a syntax error if the shell was started as sh -c ... Would it be possible to add some test to the rationale, to suggest to shell implementors that anything that is in $- should be acceptable input to "set" ? Whether implementors choose to leave 'c' (in particular) out of $-, and then object to set -c, or whether they include 'c' in $- (when appropriate) and then simply ignore "set -c" (make it a no-op, same with set +c of course) doesn't matter, just so that set +$- and set -$- never produce syntax errors. kre Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked 2017-03-16 16:23 geoffclare Tag Attached: tc3-2008 2017-03-16 17:16 kreNote Added: 0003618 ==
[1003.1(2013)/Issue7+TC1 0001039]: Which option flags should appear in $- ?
The following issue NEEDS AN INTERPRETATION. == http://austingroupbugs.net/view.php?id=1039 == Reported By:kre Assigned To: == Project:1003.1(2013)/Issue7+TC1 Issue ID: 1039 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Interpretation Required Name: Robert Elz Organization: User Reference: Section:2.5.2 Page Number:2324 Line Number:73759-73761 Interp Status: Pending Final Accepted Text:http://austingroupbugs.net/view.php?id=1039#c3617 == Date Submitted: 2016-03-26 07:30 UTC Last Modified: 2017-03-16 16:23 UTC == Summary:Which option flags should appear in $- ? == Issue History Date ModifiedUsername FieldChange == 2016-03-26 07:30 kreNew Issue 2016-03-26 07:30 kreName => Robert Elz 2016-03-26 07:30 kreSection => 2.5.2 2016-03-26 07:30 krePage Number => unknown 2016-03-26 07:30 kreLine Number => unknown 2016-03-26 08:12 Don Cragun Page Number unknown => 2324 2016-03-26 08:12 Don Cragun Line Number unknown => 73759-73761 2016-03-26 08:12 Don Cragun Interp Status => --- 2017-03-16 16:22 geoffclare Note Added: 0003617 2017-03-16 16:23 geoffclare Interp Status--- => Pending 2017-03-16 16:23 geoffclare Final Accepted Text => http://austingroupbugs.net/view.php?id=1039#c3617 2017-03-16 16:23 geoffclare Status New => Interpretation Required 2017-03-16 16:23 geoffclare Resolution Open => Accepted As Marked ==
