Joerg Schilling: Interesting that they created a name clash: "p" was the name of a pager on UNOS, the first realtime UNIX lookalike from former AT&T employees. ===== p was something Rob Pike brought when he arrived in 1980. I believe he wrote its first version several years earlier, when he was at the University of Toronto. Since UNOS dates from 1981 (says Wikipedia), I think Rob's p gets precedence. Not that it matters. There never was, nor should there ever have been, some global register of UNIX command names during its formative years. UNIX was a research platform and a living work-in-progress until it became productized in the latter part of the 1980s. And, of course, UNOS was a lookalike written from scratch. It wasn't UNIX. If it wanted to be, it should have adopted Rob's p! Norman Wilson Toronto ON (Not in a particularly serious mood)