A NOTE has been added to this issue. 
====================================================================== 
https://austingroupbugs.net/view.php?id=1879 
====================================================================== 
Reported By:                calestyo
Assigned To:                
====================================================================== 
Project:                    1003.1(2024)/Issue8
Issue ID:                   1879
Category:                   Shell and Utilities
Type:                       Clarification Requested
Severity:                   Editorial
Priority:                   normal
Status:                     New
Name:                       Christoph Anton Mitterer 
Organization:                
User Reference:              
Section:                    Shell Command Language 
Page Number:                various 
Line Number:                various 
Interp Status:              --- 
Final Accepted Text:         
====================================================================== 
Date Submitted:             2024-11-26 04:30 UTC
Last Modified:              2024-12-05 16:41 UTC
====================================================================== 
Summary:                    claifications/improvements around command/exec and
special built-in redirection errors
====================================================================== 

---------------------------------------------------------------------- 
 (0006989) geoffclare (manager) - 2024-12-05 16:41
 https://austingroupbugs.net/view.php?id=1879#c6989 
---------------------------------------------------------------------- 
Interpretation response
------------------------
The standard clearly states that when a special built-in utility is
executed via the <i>command</i> utility, the special properties in the
enumerated list at the beginning of Section 2.15 (on page 2526) shall not
occur, and conforming implementations must conform to this.

Rationale:
-------------
Despite the lack of a superscript ¹ in the table, the statement in the
description of the <i>command</i> utility is sufficient to require that a
special built-in utility executed via <i>command</i> does not exit when a
redirection error occurs.

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

On page 2498 line 81135 section 2.8.1 Consequences of Shell Errors,
change:
<blockquote>shall exit</blockquote>
to:
<blockquote>shall exit¹</blockquote>

On page 2498 line 81166 section 2.8.1 Consequences of Shell Errors,
change:
<blockquote>the shell shall (respectively, may) exit from the subshell
environment with a non-zero status and continue in the environment from
which that subshell environment was invoked.</blockquote>
to:
<blockquote>the shell shall (respectively, may) exit from the subshell
environment, with the exit status stated in the EXIT STATUS section for the
<i>sh</i> utility, and continue in the environment from which that subshell
environment was invoked.</blockquote>

On page 2526 line 82346 section 2.15 Special Built-In Utilities, change:
<blockquote>An error in a special built-in utility may cause a shell
executing that utility to abort, while an error in a regular built-in
utility shall not cause a shell executing that utility to
abort.</blockquote>
to:
<blockquote>An error in a special built-in utility or redirection error
with a special built-in utility may cause a shell executing that utility to
abort, while for a regular built-in utility such errors shall not cause a
shell executing that utility to abort.</blockquote>

On page 2539 line 82804 section exec, change:
<blockquote>If a redirection error occurs (see [xref to 2.8.1]), the exit
status shall be a value in the range 1−125.</blockquote>
to:
<blockquote>If a redirection error occurs and the shell does not exit (see
[xref to 2.8.1]), the exit status (of <i>exec</i>) shall be a value in the
range 1−125.</blockquote> 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2024-11-26 04:30 calestyo       New Issue                                    
2024-11-26 04:30 calestyo       Name                      => Christoph Anton
Mitterer
2024-11-26 04:30 calestyo       Section                   => Shell Command
Language
2024-11-26 04:30 calestyo       Page Number               => various         
2024-11-26 04:30 calestyo       Line Number               => various         
2024-11-26 08:23 larryv         Note Added: 0006970                          
2024-11-26 08:26 larryv         Note Edited: 0006970                         
2024-11-26 08:27 larryv         Note Edited: 0006970                         
2024-11-26 18:48 calestyo       Note Added: 0006971                          
2024-11-27 07:19 larryv         Note Added: 0006972                          
2024-11-27 20:47 calestyo       Note Added: 0006973                          
2024-11-27 22:57 larryv         Note Added: 0006974                          
2024-11-28 16:21 geoffclare     Note Added: 0006975                          
2024-11-28 16:23 geoffclare     Note Edited: 0006975                         
2024-11-28 16:45 geoffclare     Note Added: 0006976                          
2024-11-28 16:49 geoffclare     Note Added: 0006977                          
2024-11-28 16:51 geoffclare     Note Edited: 0006977                         
2024-11-30 05:14 calestyo       Note Added: 0006978                          
2024-11-30 05:17 calestyo       Note Edited: 0006978                         
2024-12-05 16:41 geoffclare     Note Added: 0006989                          
======================================================================


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