>> Since I will have a need to run this check frequently, any suggestions for >> a better approach are welcome. > >sort -u and comm(1)?
sort is O(N log N) while grep is O(N) Which is faster depends on the constant factors in each, but as the data sets get bigger, the log N term will dominate. That is, for small sets of data, I don't know which will be faster, but either will be fast enough so who cares. For large sets of data, the sort will be slow. R's, John _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
