jidgen is a Java-based id generator that can be used as a command line program or as a library. The idea is to make automated generation of user IDs as easy as possible by introducing a simple, straightforward template language to describe the structure of the desired IDs. jidgen uses 100% Java and is thus platform independent. Itsupports collision filters for different backends to ensure the generated ID is unique in your environment. Blacklists are available to make sure all IDs are socially acceptable. As a command line program, it can easily be accessed by scripts or directly by the user. As an embedded library, it can easily be employed in the process of automated ID generation and suggestion.
The 64 Studio Platform Development Kit (PDK) is a version control system for GNU/Linux distributions, allowing the creation and management of many different projects, based on Debian and Ubuntu sources. PDK is written in Python, and the source code is well commented and contains documented examples.
Phacter is a Python port of facter, a tool included in Puppet. It provides an inventory of your system and, depending on how it is run, will return this data to stdout or as a Python dict. It is the first part of a project that aims to be a Python-based systems administration framework called Speed (ServersOnSpeed).
config-package-dev is a system of CDBS modules for creating Debian configuration packages: packages that configure an existing Debian system by using dpkg-divert on configuration files. These modules attempt to make the process of creating configuration packages efficient by checking the md5sums of upstream configuration files that are to be modified and by automatically generating the relevant postinst code to perform the diversions using the standard debhelper mechanism.
rstash is a server and client for transferring files over a network into file drop boxes on the server. It is primarily aimed at transferring things such as backup files from one host to another without opening up complete shell accounts, NFS, FTP, or other full file transfer mechanisms. The server has a set of boxes into which the client can put named files in a write-only fashion. No access to any portions of the server's file system outside the configured drop boxes is permitted.
Diskus is a high-level hard drive diagnostic and limited repair tool. It checks the disk geometry by writing numbered IDs into the sectors of the hard drive. Later one can verify that these sector-IDs on the disk are still correct, thereby detecting data which was not correctly written. There is an option to "freshen" the data on your harddrive, which will read and rewrite the sectors. With modern drives this will re-map defective sectors.