The Auto Screenshot Utility for Linux allows users to capture screenshots at regular intervals. Configurable options allow control of the number of screenshots to capture. The capture time interval is also configurable from the main screen of the software. If your desktop environment supports a notification area, you can even minimize the main screen of the software to the notification area/system tray. The screenshot location is configurable as well.
Site Change Detection is a class that scans a directory to detect file changes. It performs an initial scan of a given directory and records the names and hashes of files found in a MySQL database. Subsequent scans detect any files that were added, changed, or deleted. The class can also setup the database tables to perform the initial configuration.
UnDBX is a tool to extract, recover, and undelete email messages from Outlook Express .dbx files. On first run, all messages are extracted as individual .eml files. Subsequent runs only update the output directory with new messages, and delete old .eml files that correspond to deleted messages in the .dbx file. Corrupted .dbx files (including files larger than 2GB) can be opened in recovery mode, in order to recover messages and partially undelete deleted messages. The success of recovery depends on the type and level of .dbx file corruption.
AstroStack is an easy-to-use astronomical imaging and processing tool geared towards the use of inexpensive webcam CCDs. It provides a very tunable environment to produce the best quality images. It supports the following features: tunable webcam sampling; image stacking (averaging, additive etc.); pre and post-capture gamma (brightness) and contrast correction; dark-shot CCD calibration (subtractive); and an internal 16-bit grey-scale format for optimal resolution.