View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000280 | 1003.1(2008)/Issue 7 | Shell and Utilities | public | 2010-07-08 00:25 | 2013-04-16 13:06 |
| Reporter | calestyo | Assigned To | ajosey | ||
| Priority | normal | Severity | Editorial | Type | Clarification Requested |
| Status | Closed | Resolution | Accepted As Marked | ||
| Name | Christoph Anton Mitterer | ||||
| Organization | |||||
| User Reference | |||||
| Section | set built-in utility | ||||
| Page Number | 2358-2359 | ||||
| Line Number | 74545-74548,74590-74591 | ||||
| Interp Status | --- | ||||
| Final Accepted Text | See 0000280:0000481 | ||||
| Summary | 0000280: description is not clear enought on what happens if the shell immediately exits | ||||
| Description | set allows to set several events on which the shell immediately exits (e.g. -e and -u). It does however (at least in that place - http://www.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#set) not specify the consequences (e.g. the exit status). | ||||
| Desired Action | Clarification of the above. | ||||
| Tags | tc1-2008 | ||||
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In the case of -e the exit status is adequately described in the EXIT STATUS section on the sh page. The description of set -e cannot specify the final exit status of the shell because it might depend on commands executed in an EXIT trap. In the case of -u this does look like a genuine omission. Again, it cannot specify the final exit status of the shell, but it should say something about the exit status of the (unexecuted) command in which the unset variable was used. This would then determine the exit status of the shell in the absence of an EXIT trap (and would be assigned to $? in an interactive shell). The description of set -u is already being modified by 0000155. A suitable new description that fixes both problems might be: When the shell tries to expand an unset parameter other than the '@' and '*' special parameters, it shall write a message to standard error and shall not execute the command containing the expansion, but for the purposes of setting the '?' special parameter and the exit status of the shell the command shall be treated as having been executed and returned an exit status of between 1 and 125 inclusive. A non-interactive shell shall immediately exit. An interactive shell shall not exit. |
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One could (for -e) add a note and link to EXIT STATUS section, and add (as a note) what you described here ("depend on commands executed in an EXIT trap"). |
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Make the changes noted in 0000280:0000457. Note to editor: Apply this change after making the changes specified in 0000155. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2010-07-08 00:25 | calestyo | New Issue | |
| 2010-07-08 00:25 | calestyo | Status | New => Under Review |
| 2010-07-08 00:25 | calestyo | Assigned To | => ajosey |
| 2010-07-08 00:25 | calestyo | Name | => Christoph Anton Mitterer |
| 2010-07-08 00:25 | calestyo | Section | => set built-in utility |
| 2010-07-08 00:25 | calestyo | Page Number | => none |
| 2010-07-08 00:25 | calestyo | Line Number | => none |
| 2010-07-08 05:40 | Don Cragun | Page Number | none => 2358-2359 |
| 2010-07-08 05:40 | Don Cragun | Line Number | none => 74545-74548,74590-74591 |
| 2010-07-08 05:40 | Don Cragun | Interp Status | => --- |
| 2010-07-08 09:10 | geoffclare | Note Added: 0000457 | |
| 2010-07-12 21:46 | calestyo | Note Added: 0000461 | |
| 2010-07-29 15:39 | Don Cragun | Final Accepted Text | => See 0000280:0000457 |
| 2010-07-29 15:39 | Don Cragun | Note Added: 0000481 | |
| 2010-07-29 15:39 | Don Cragun | Status | Under Review => Resolved |
| 2010-07-29 15:39 | Don Cragun | Resolution | Open => Accepted As Marked |
| 2010-07-29 15:40 | Don Cragun | Final Accepted Text | See 0000280:0000457 => See 0000280:0000481 |
| 2010-08-27 11:16 | ajosey | Tag Attached: tc1-2008 | |
| 2012-05-11 08:08 | geoffclare | Relationship added | related to 0000155 |
| 2012-05-11 08:09 | geoffclare | Relationship added | related to 0000559 |
| 2013-04-16 13:06 | ajosey | Status | Resolved => Closed |
