H. Peter Anvin wrote: > Do the shells on these systems support $'\n' constants?
Sure. Dollar-single-quote strings in sh are quote portable. > There is also the option of simply putting a newline in the string, I > believe. The best way to include a newline in a sed script is not to use a literal newline directly, but rather to use backslash-newline, and start a new -e argument for the second line. [1][2] But this is, IMO, an inordinate amount of workarounds, for using 'sed' on an input file that contains a list of numbers, one per line. It's better to put the 'sed' script in a separate file and invoke sed with one '-f' option instead of with several '-e' options. Another maintainable approach, which does not require a separate file, is the simple 'while' loop in the patch that I'm proposing. Bruno [1] https://pubs.opengroup.org/onlinepubs/9799919799/utilities/sed.html [2] https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.72/html_node/Limitations-of-Usual-Tools.html
