--- Steve Harris <S.W.Harris@xxxxxxxxxxxxxxx> wrote: > On Sun, Aug 24, 2003 at 11:03:43 -0700, Mark Knecht wrote: > > Presumably if one file had a few seconds of silence at the > start of > > end I could just delete that by hand in vi? I don't know how far > off in > > lines diff can handle looking for a first match, but a few > seconds could > > end up being 100K lines... > > I think diff would handle it fine, it doesn't have much choice, but > you would get bored paging through all those zeros. > > I guess an easy fix would be to crunch up all the 0.0's so that > instead of > 0.0 0.0 > 0.0 0.0 > ... > 40000 times > > you got > 0.0 0.0 40000 > > (run length encoding) so diff would just sho the difference in the > numer, rather than listing all the lines. It would be a trivial > awk script I think, an exercise for the reader :) > > - Steve hi, you could pipe the diff output to 'uniq -c' command here?... with the -c parameter it counts the input (see manpage). example: [12] HOME> cat > uneek1 0 0 0 0 0 0 0 0 0 0 1 2 3 [13] HOME> cat > uneek2 1 2 3 [14] HOME> diff uneek1 uneek2 1,10d0 < 0 < 0 < 0 < 0 < 0 < 0 < 0 < 0 < 0 < 0 [15] HOME> diff uneek1 uneek2 |uniq -c 1 1,10d0 10 < 0 a perfect match (with only a starting silence in one of the files) should result in only one line of counted zero's in the uniq's results. i think. =) gr, ALEX ________________________________________________________________________ Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger http://uk.messenger.yahoo.com/
