A NOTE has been added to this issue. ====================================================================== http://austingroupbugs.net/view.php?id=1161 ====================================================================== Reported By: steffen Assigned To: ====================================================================== Project: 1003.1(2016)/Issue7+TC2 Issue ID: 1161 Category: Shell and Utilities Type: Clarification Requested Severity: Editorial Priority: normal Status: Resolved Name: steffen Organization: User Reference: Section: command Page Number: 2596 Line Number: 84274 ff. Interp Status: --- Final Accepted Text: See http://austingroupbugs.net/view.php?id=1161#c4220 Resolution: Accepted As Marked Fixed in Version: ====================================================================== Date Submitted: 2017-09-04 13:09 UTC Last Modified: 2019-01-24 23:33 UTC ====================================================================== Summary: command -v must find something executable ======================================================================
---------------------------------------------------------------------- (0004223) kre (reporter) - 2019-01-24 23:33 http://austingroupbugs.net/view.php?id=1161#c4223 ---------------------------------------------------------------------- This explains which kinds of files that command -v is supposed to locate, as XBD 3.154 defines "executable file" - but now I'd like someone to please explain how a shell is supposed to implement that? As best I can tell, the only way (using defined interfaces) to find out if a file is: A regular file acceptable as a new process image file by the equivalent of the exec family of functions, is to apply one of the exec family of functions to it, and see what happens. But that is not safe, as if it succeeds (an exec attempt) we cannot know what will happen next (consider "command -v halt" (run as root)) Of course, there are so many interfaces that I might have missed one. In that case, someone please tell me which one I missed. Issue History Date Modified Username Field Change ====================================================================== 2017-09-04 13:09 steffen New Issue 2017-09-04 13:09 steffen Name => steffen 2017-09-04 13:09 steffen Section => command 2017-09-04 13:09 steffen Page Number => 2596 2017-09-04 13:09 steffen Line Number => 84274 ff. 2017-09-04 15:49 kre Note Added: 0003821 2017-09-05 06:58 stephane Note Added: 0003823 2017-09-05 08:30 stephane Note Added: 0003824 2017-09-05 12:34 steffen Note Added: 0003825 2017-09-05 12:39 steffen Note Added: 0003826 2017-09-05 12:47 kre Note Added: 0003827 2017-09-05 13:37 steffen Note Added: 0003828 2017-09-05 15:37 chet_ramey Note Added: 0003829 2017-09-05 15:41 stephane Note Added: 0003830 2017-09-05 16:01 stephane Note Added: 0003831 2017-09-05 16:36 stephane Note Added: 0003832 2017-09-05 17:30 stephane Note Added: 0003833 2017-09-05 20:17 steffen Note Added: 0003834 2017-09-05 20:19 steffen Note Added: 0003835 2017-09-05 20:27 kre Note Added: 0003836 2017-09-05 20:29 chet_ramey Note Added: 0003837 2017-09-05 21:27 eblake Note Added: 0003838 2017-09-05 21:50 kre Note Added: 0003839 2017-09-05 21:52 kre Note Edited: 0003839 2017-09-05 22:21 eblake Note Added: 0003840 2017-09-05 22:23 Don Cragun Note Added: 0003841 2017-09-05 22:24 Don Cragun Note Deleted: 0003841 2017-09-06 00:00 kre Note Added: 0003842 2017-09-06 00:00 kre Note Deleted: 0003839 2017-09-06 08:30 stephane Note Added: 0003843 2017-09-06 08:32 stephane Note Edited: 0003843 2017-09-06 09:30 stephane Note Added: 0003844 2017-09-06 09:37 stephane Note Added: 0003845 2017-09-06 09:50 joerg Note Added: 0003846 2017-09-06 09:50 joerg Note Edited: 0003846 2017-09-06 09:50 joerg Note Edited: 0003846 2017-09-06 09:54 stephane Note Edited: 0003845 2017-09-06 12:55 steffen Note Added: 0003847 2017-09-06 13:41 stephane Note Added: 0003848 2017-09-07 17:31 kre Note Deleted: 0003842 2017-09-07 17:58 kre Note Added: 0003849 2017-09-07 18:29 chet_ramey Note Added: 0003850 2017-09-07 21:17 kre Note Added: 0003851 2017-09-07 21:18 kre Note Edited: 0003851 2017-09-09 19:10 chet_ramey Note Added: 0003852 2018-04-25 17:57 McDutchie Note Added: 0003997 2019-01-24 17:11 nick Note Added: 0004220 2019-01-24 17:11 nick Interp Status => --- 2019-01-24 17:11 nick Final Accepted Text => See http://austingroupbugs.net/view.php?id=1161#c4220 2019-01-24 17:11 nick Status New => Resolved 2019-01-24 17:11 nick Resolution Open => Accepted As Marked 2019-01-24 17:12 nick Tag Attached: tc3-2008 2019-01-24 23:33 kre Note Added: 0004223 ======================================================================
