Follow-up Comment #21, bug #58206 (project groff): Here is an illustration of "\n" working as an encoded newline as replacement text in macOS sed's 's' command.
$ uname -a Darwin gcc104.fsffrance.org 21.6.0 Darwin Kernel Version 21.6.0: Mon Aug 22 20:20:05 PDT 2022; root:xnu-8020.140.49~2/RELEASE_ARM64_T8101 arm64 $ sed --version # reveal non-GNU sed sed: illegal option -- - usage: sed script [-Ealnru] [-i extension] [file ...] sed [-Ealnu] [-i extension] [-e script] ... [-f script_file] ... [file ...] $ echo foo | sed 's/foo/&\nbar/' foo bar _______________________________________________________ Reply to this item at: <https://savannah.gnu.org/bugs/?58206> _______________________________________________ Message sent via Savannah https://savannah.gnu.org/