Hello FPC-Pascal, Tuesday, April 12, 2011, 1:09:34 AM, you wrote:
RW> On 04/11/2011 12:32 PM, John Lee wrote: >> Need to read the last 4 lines (txt) of a very large log file 100M >> bytes, 100k lines or more lots of times - of course I can read RW> Hmm, could first have the reader enumerate the number of lines in the RW> file, then read through the files using the "total number of lines - 4" RW> variable and then start displaying the lines after that variable has RW> been reached. If necessary, I would be happy to see what I can come up RW> with here and then post it to the mailing list. Go get the amount of lines of a file you must read the whole file as each line does not have a fixed size. To put an non programming example you think in an elevator and I tell you that the elevator can lift up 600 kilograms. How many people are inside ? You can routhly calculate that 8 persons as in average one persons is 75 kilograms in weigth, but what happends if the elevator is filled with childrem ( sometimes called people too :-) ) between 5 and 6 years old ? -- Best regards, José _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
