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.
TextSearch is a program to search through a set of text files in a directory structure. Each document is searched using a regular expression and an overview of the results is shown as a tree structure. By clicking on a file, it can be viewed, with matches being highlighted. As opposed to other programs out there, its focus is not so much on statistics, i.e. how often a word would occur in an entire corpus of files, but rather on occurrences in single files.
The NetCDF package consists of a few tools to operate on NetCDF and, by utilizing the compatibility API, HDF4 files. The tools are intended to be used from shell scripts. They include a couple of simple shell wrappers over the respective NetCDF functions (ncattget and ncattput) and a more sophisticated ncget tool. The ncget tool delivers (for NetCDF) or complements (for HDF4) the functionality of the "hdp dumpsds" command. It allows a selected part of a NetCDF variable or an HDF4 scientific data set (SDS) to be extracted in either an ASCII or binary form, applying the transformation specified by the scale_factor and add_offset attributes. This tool allows one to feed the data of NetCDF variables (or HDF4 SDS) to other tools designed to operate on either ASCII (text) or raw (binary) data.