Hi Patrick, > > For a one-off quick task, automating it would be more tedious. > > But you did it anyway, even though you didn't need the results!
Well, I was wondering how it could be done and like solving the puzzle; keeps my hand in. What I did was O(n²) though, where n is the number of files. For production, fgrep's patterns should be calculated just once. > There seems to be a copy of it in the library at Bournemouth > University. https://capitadiscovery.co.uk/bournemouth-ac/items/91529 > At some point I will head over there to have a read and see what's > nearby on the shelves The university used to have staff and students interested in Unix and ran Solaris or a descendant so there could be quite a few good books from those times. Skimming https://capitadiscovery.co.uk/bournemouth-ac/items?query=subject%3A%28UNIX%29&sort=publishedyear I see decent ones they have include Stevens' Unix network programming. Levine's Lex & yacc. McKusick's Design and implementation of the 4.4BSD operating system. A book well worth reading they've got is Jon Bentley's ‘Programming Pearls’. He was at Bell Labs and uses the Unix shell and small C programs to tackle many interesting problems. https://capitadiscovery.co.uk/bournemouth-ac/items?query=subject%3A%28UNIX%29&sort=publishedyear They also have Aho, Hopcroft, and Ullman's ‘Data structures and algorithms’ if you like that kind of thing. Bell Labs again, they invented some of them and ‘wrote the book’. I found the search's ability to list the oldest books first useful; if they have an old book then it's probably one of the classics. -- Cheers, Ralph. -- Next meeting: BEC, Bournemouth, Tuesday, 2019-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk/ New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
