https://unix.stackexchange.com/questions/145522/what-does-it-mean-to-be-sh-compatible

If you like to know more relations, e.g. with UNOS "command", "bsh" and the recent
Bourne Shell, send me a note. As a hint: UNOS command had a builtin command
"do" that acted as a one-line shell script with arguments. This idea was transferred into
the Bourne Shell as "dosh" and permits parameterizable aliases, something you cannot get from ksh or bash. ? schily

このschilyってのはSchily Bourne Shell（=bosh）の作者かな？