The referenced script uses "asort", which is a gawk extension (rather than, for instance, being a POSIX feature). It's not part of BWK (one-true-awk), either.
According to the bug-reporting guidelines, that makes this a feature request, aka "wishlist" item. -- Thomas E. Dickey <[email protected]> https://invisible-island.net ftp://ftp.invisible-island.net
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