My thanks to several people who have provided great suggestions and an apology for not being clear on the log data I am mining for MAC addresses. It is syslog and a typical line looks like:
Aug 26 20:45:36 dh1 dhcpd: DHCPACK on 10.198.67.116 to 00:12:f0:88:97:d6 (peaster-laptop) via 10.198.71.246 That was one line broken to aid in emailing, but that's what types of lines are involved. The MAC appears at different field locations depending on the type of event being logged so awk is perfect for certain types of lines, but it misses others and no one awk expression gets them all. This is an attempt to isolate every MAC address that appears and then sort and count them to see who is having trouble or, in some cases, is causing trouble. The sed pattern matching system is interesting because I can think of several similar situations in which the data are there but there is no guarantee where on a given line it sits and grep or sed usually will pull in the whole line containing the desired data which means that one must further parse things to get what is wanted. Martin McCormick _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"