A NOTE has been added to this issue. ====================================================================== https://austingroupbugs.net/view.php?id=1941 ====================================================================== Reported By: dwheeler Assigned To: ajosey ====================================================================== Project: 1003.1(2008)/Issue 7 Issue ID: 1941 Category: Shell and Utilities Type: Enhancement Request Severity: Objection Priority: normal Status: Under Review Name: David A. Wheeler Organization: User Reference: Section: grep Page Number: 1 Line Number: 1 Interp Status: --- Final Accepted Text: ====================================================================== Date Submitted: 2025-08-30 21:51 UTC Last Modified: 2025-09-01 05:57 UTC ====================================================================== Summary: Add widely-implemented options to grep ======================================================================
---------------------------------------------------------------------- (0007246) stephane (reporter) - 2025-09-01 05:57 https://austingroupbugs.net/view.php?id=1941#c7246 ---------------------------------------------------------------------- Note that the reason those are widespread is that for the longest time BSDs actually shipped with GNU grep (some version thereof), many have since eventually re-implemented theirs trying to keep the GNU API, but sometimes diverging between themselves and from GNU grep after (and even before as they stayed on an older version of GNU grep) that point. Recursive grep is very unportable in part because in GNU grep it has changed greatly over the years with regards to handling of symlinks and non-regular files. Divergences are hard to reconciliate now. -L/-H like in other recursive tools can't be used because they're used for other things in GNU grep, and anyway we'd need a third one for whether or not to process symlinks to regular files when doing a traversal that doesn't itself follow symlinks. ast-open grep (which can also be made the grep builtin of ksh93, though I don't know whether there's any system where that's the case) is another grep implementation that has incorporated many of GNU grep's features (https://github.com/ksh93/ast-open-archive/blob/2014-12-24/src/lib/libcmd/grep.c#L23-L113). Its -o prints empty matches (a bug as it means it runs into infinite loops in that case). Issue History Date Modified Username Field Change ====================================================================== 2025-08-30 21:51 dwheeler New Issue 2025-08-30 21:51 dwheeler Status New => Under Review 2025-08-30 21:51 dwheeler Assigned To => ajosey 2025-08-30 21:56 dwheeler Note Added: 0007240 2025-08-30 21:59 dwheeler Note Added: 0007241 2025-08-31 00:07 mirabilos Note Added: 0007242 2025-08-31 00:10 mirabilos Note Added: 0007243 2025-08-31 21:52 dwheeler Note Added: 0007244 2025-08-31 22:01 dwheeler Note Added: 0007245 2025-09-01 05:57 stephane Note Added: 0007246 ======================================================================
