Logsend is a Unix daemon for email notification of log file changes, having 3 different backends. It watches the log files and periodically mails you the additions (being able to filter them). Logsend comes with a dialog-based configuration tool, as well as a live monitor that allows the users to watch the changes in real time.
ColorLogs is an output-colorizing Perl script intended to have command output piped through it to a terminal. It allows easy creation of new highlighting configurations using simple text matches, globs, or regular expressions. It works transparently even in interactive contexts with scripts that produce prompt lines and wait for user input. Patterns are provided for Ant and Maven output. This version started as a fork of v1.1 from resentment.org, but numerous improvements have been made since then.