gnu@hoptoad.UUCP (04/05/87)
In article <1987Mar30.143052.16783@sq.uucp>, msb@sq.UUCP writes: > Also unfortunately, the new book "Portable C and UNIX System Programming" > by "J. E. Lapin" misses this one. (That's why I had to check manuals...) I found that the book, while useful, does mis-characterize a lot of features. I presume that this is mostly because they said they worked from the documentation, rather than actually testing the systems! A shame, for a book where half the page count (130 pages) is the tables of comparisons, and explanatory notes on the tables. So far the system comparison I trust best is Guy Harris's, done in the Sun "System V Enhancements Overview" manual (I think I got that title right), since he actually had to merge the code... PS: If you think you know what options grep, fgrep, and egrep take, and what pattern metacharacters they handle -- try them! Note also that there are or were two grep's (/bin/grep and /usr/ucb/grep) on 4.2BSD and maybe 4.3. James Woods may be the only person alive who knows all this stuff, since he redid it for speed and PD-ness. -- Copyright 1987 John Gilmore; you can redistribute only if your recipients can. (This is an effort to bend Stargate to work with Usenet, not against it.) {sun,ptsfa,lll-crg,ihnp4,ucbvax}!hoptoad!gnu gnu@ingres.berkeley.edu