Eunice (software)

{{Infobox software

| name = Eunice

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| author = David Kashtan

| developer = SRI International,
The Wollongong Group

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| operating system = DEC VAX/VMS

| platform = VAX computers

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| genre = Compatibility layer

| license = Proprietary commercial software

}}

Eunice was a Unix-like working environment for VAX computers running DEC's VAX/VMS, based on the BSD version of Unix. It was originally developed ca. 1981 by David Kashtan at SRI, and later maintained and marketed by The Wollongong Group.{{cite news |title=The Wollongong Group upgrades its Eunice Unixalike operating system |publisher=Computer Business Review |date=19 July 1988 |url=https://techmonitor.ai/techonology/the_wollongong_group_upgrades_its_eunice_unixalike_operating_system}}

Eunice was one of several Unix compatibility packages developed during the 1980s. It provided VMS binary versions of Unix tools, a VMS object library emulating the Unix API (including the system call interface) and an assembler that produced VMS binaries.{{Cite web |title=Kermit Software Source Code Archive |url=http://www.columbia.edu/kermit/archive.html |access-date=2023-12-22 |website=www.columbia.edu}} Eunice was criticized for its performance problems and not quite complete Unix compatibility.{{cite tech report |first=Michael |last=Caplinger |date=1987 |title=Φnix: a Unix emulator for VAX/VMS |id=MASC TR82-8 |publisher=Rice University |hdl=1911/101549 }} Eunice's reputation for poor compatibility inspired the "Congratulations. You aren't running Eunice." message included in the Perl configure script.{{cite video |url=https://www.youtube.com/watch?v=cj02_UeUnGQ|title=A Political History of X |first=Keith |last=Packard |authorlink=Keith Packard |work=LCA 2020 |date=2020-01-16}}Perl Configure script [https://github.com/Perl/perl5/blob/cb6b3bdbf08a1fd3b5f9c62fbf0b43efd85380ce/Configure#L4542 on GitHub]