Treewatch watches a directory for a specified type of file to change. When one of the files changes, treewatch runs a program of the user's choice. By default, treewatch will watch the current directory and run "make" when changes are detected in files ending in .cpp, .c, or .h. The user can specify any number of directories to watch, any number of file types to watch for, and any command line to run.
trend is a general-purpose, efficient trend graph for "live" data. Data is read in ASCII format from a file or continuously from a FIFO, and is played in real-time into a multi-pass trend (much like a CRT oscilloscope or a strip chart). trend can be used as a rapid analysis tool for progressive or time-based data series together with trivial scripting.
trollhunter offers various tools to either analyze existing logfiles or monitor firewall activity in real time. Currently standard log messages generated by a Linux 2.4 kernel netfilter/iptables firewall are supported. You can choose from a Perl/Tk interface or run in commandline standard ASCII color TTY terminal.
ttmap passively analyzes values of TCP Timestamps in captured IP packets. After collecting enough data, it computes characteristic remote machine parameters. These values let it guess remote operating systems and identify unique machines behind a single IP address. For example, it can analyze remote IP load-balanced clusters.
ttyload is a tty-based utility for monitoring the load averages on a Unix system. It presents 3 graphs, one for each of the 3 common load average numbers (1min, 5min, 15min) that things like uptime normally show you. Each graph is in its own color, and if two or more of the graphs happen to intersect, then the color changes to reflect that.
Tupd is a trustworthy daemon that reports uptime statistics via HTTP. Tupd is designed to be small, simple, and secure. These features make tupd suitable for use on critical servers and firewalls where a full HTTP server and script installation would pose an unacceptable security risk.