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IDProjectCategoryView StatusDate SubmittedLast Update
00009811003.1(2013)/Issue7+TC1Shell and Utilitiespublic2015-08-31 19:212024-06-11 09:02
Reporterjoerg Assigned To 
PrioritynormalSeverityEditorialTypeClarification Requested
Status ClosedResolutionAccepted As Marked 
NameJörg Schilling
Organization
User Reference
SectionShell Command language
Page Number2382
Line Number75893-75894
Interp StatusApproved
Final Accepted Text0000981:0003261
Summary0000981: Remove oudated set -o nolog
DescriptionThe shell option "nolog" is an implementation detail of the ksh88 history mechanism and thus does not belong into a POSIX standard.

Even ksh93 made it a dummy option.
Desired ActionRemove lines 75893 and 75894 on page 2382
Tagstc3-2008

Relationships

related to 0001207 Closed 1003.1(2016/18)/Issue7+TC2 "set -o option" should be mandatory, not UP 

Activities

jilles

2015-08-31 21:43

reporter   bugnote:0002801

Although I agree that the "nolog" option no longer means anything, we should be careful with removing shell options entirely, since attempting to set an unknown option aborts execution of a profile or script unless special measures are taken.

joerg

2015-09-02 16:02

reporter   bugnote:0002806

There is no history for commands from within scripts and the worst result I could imagine is a "nolog: bad option(s)" mesage from $ENV.

geoffclare

2016-06-09 16:30

manager   bugnote:0003261

Last edited: 2016-06-10 06:48

 Interpretation response
------------------------
The standard states the requirements for set -o nolog, and conforming implementations must conform to this. However, concerns have been raised about this which are being referred to the sponsor.

Rationale:
-------------
The standard developers could not identify any shell in which set -o nolog has an effect on shell history.

Notes to the Editor (not part of this interpretation):
-------------------------------------------------------

After page 2382, Lines 75893-75894 in the description of the set utility:
nolog
Prevent the entry of function definitions into the command history; see Command History List.
add:
This option may have no effect; it is kept for compatibility with previous versions of the standard.
and mark page 2382, lines 75893-75894 (including the nolog heading and the newly added text) OB.

On page 2386, line 76051, change FUTURE DIRECTIONS from:
None.
to:
A future version of this standard may remove the -o nolog option.
On page 3204 line 107359 section sh, delete:
For example, function definition commands are recorded in the history file, unless the set −o nolog option is set. If the system administrator includes function definitions in some system start-up file called before the ENV file, the history file is initialized before the user gets a chance to influence its characteristics.

ajosey

2016-06-17 07:11

manager   bugnote:0003266

Interpretation Proposed: 17 June 2016

ajosey

2016-07-19 11:36

manager   bugnote:0003299

Interpretation approved: 19 July 2016

Issue History

Date Modified Username Field Change
2015-08-31 19:21 joerg New Issue
2015-08-31 19:21 joerg Name => Jörg Schilling
2015-08-31 19:21 joerg Section => Shell Command language
2015-08-31 19:21 joerg Page Number => 2382
2015-08-31 19:21 joerg Line Number => 75893-75894
2015-08-31 21:43 jilles Note Added: 0002801
2015-09-02 16:02 joerg Note Added: 0002806
2016-06-09 16:30 geoffclare Note Added: 0003261
2016-06-09 16:31 geoffclare Interp Status => Pending
2016-06-09 16:31 geoffclare Final Accepted Text => 0000981:0003261
2016-06-09 16:31 geoffclare Status New => Interpretation Required
2016-06-09 16:31 geoffclare Resolution Open => Accepted As Marked
2016-06-09 16:32 geoffclare Tag Attached: tc3-2008
2016-06-10 06:48 geoffclare Note Edited: 0003261
2016-06-17 07:11 ajosey Interp Status Pending => Proposed
2016-06-17 07:11 ajosey Note Added: 0003266
2016-07-19 11:36 ajosey Interp Status Proposed => Approved
2016-07-19 11:36 ajosey Note Added: 0003299
2018-09-06 09:06 geoffclare Relationship added related to 0001207
2019-10-21 09:18 geoffclare Status Interpretation Required => Applied
2024-06-11 09:02 agadmin Status Applied => Closed