closest-features(1) on Linux
The text 79ca006a581b, as Debian 11 (Bullseye) shipped it.
manual page for closest-features 2.4.39+dfsg1
Flags it lists
-
--chrom -
--closest -
--delim -
--dist -
--ec -
--header -
--help -
--no-overlaps -
--no-ref -
--version