ssqlfs uses a defined file/directory structure to generate an SQL database which corresponds to that file/directory structure. Along with support for one-to-many tables, ssqlfs includes support for representing many-to-many tables. Ideally, the filesystem would be interconvertible with an SQL database, but at this point the functions for generating a file/directory structure from the SQL database remain to be thoroughly tested.
stableUpdate is an autoupdate tool for creating, detecting, downloading, installing, and removing service packs for JAR-based Java applications. Generated updates are transferred in archives, upgrading between subsequent versions. An update contains changed single files and changed parts of JAR and ZIP files. It supports mirrors, release notes, and uninstallation of updates.
Statist is a statistics program with an interactive menu that makes it very easy to use. It can also be run in scripts, and large data sets are handled reasonably well even on small machines. In spite of its low overhead, it can do quite a few regression functions and tests. It can produce colorized output, and uses gnuplot to create graphics.
statsmodels is a Python package which provides a complement to scipy for statistical computations, including descriptive statistics and estimation of statistical models. The main included model categories are linear, discrete, generalized linear, and robust linear, and, in time series analysis, AR, ARMA, and VAR. It also includes statistical tests mainly for regression diagnostics. statsmodels was renamed from scikits.statsmodels.
stdin2news is a simple script that posts imput from STDIN to a news server. It is easily configurable, doesn't require any external programs, and can be used in batch jobs. Unlike rnews it does not require a msgid to be provided, as it presumes it will be generated by the news server.
stdnoj is a cross-platform C++ class library that includes classes for using portable strings, databases, SMTP, POP, NNTP, arrays, files, directories, logging, email, and sockets. While templates are used, no reliance upon STL or other (traditionally error-prone) technologies has been used, which increases portability between compilers.
Steghide is a steganography program that is able to hide data in various kinds of image and audio files. The color-frequencies (for image files) or sample-frequencies (for audio files) are not changed, thus making the embedding resistant against first-order statistical tests. Features of steghide include compression and encryption of embedded data, embedding of a checksum to verify the integrity of the extracted data, and support for JPEG, BMP, WAV, and AU files.