Logtail

Logdigest mails interesting lines from log files to the system administrator. Non-relevant lines are filtered out by customizable regular expressions. Logdigest comes with a set of such regexps to provide a good starting point. Platforms: Mac

Logcheck is software package that is designed to automatically run and checksystem log files for security violations and unusual activity. Logcheckutilizes a program called logtail that remembers the last position it readfrom in a log file. Platforms: *nix