performance monitoring tool for Linux

nmon

performance monitoring tool for Linux

nmon is a systems administrator, tuner, benchmark tool. It can display the CPU, memory, network, disks (mini graphs or numbers), file systems, NFS, top processes, resources (Linux version & processors) and on Power micro-partition information.
GNU stream editor for filtering/transforming text

sed

GNU stream editor for filtering/transforming text

sed reads the specified files or the standard input if no files are specified, makes editing changes according to a list of commands, and writes the results to the standard output.
general-purpose, efficient trend graph

trend

general-purpose, efficient trend graph

trend is a general-purpose, efficient trend graph for "live" data. Data is read in ASCII form from a file or continuously from a FIFO and displayed in real-time into a multi-pass trend (much like a CRT oscilloscope). trend can be used as a rapid analysis tool for progressive or time-based data series together with trivial scripting.
Fractal flame rendered with flam3

flam3

render and animate FLAM3s and manipulate their genomes

Fractal Flames are algorithmically generated images and animations. The software was originally written in 1992 and released as open source, aka free software. Since then it has developed a lot. It has been incorporated into many graphics programs and ported to most operating systems. The shape of each image is specified by a long string of numbers - a genetic code of sorts.
DomainKeys Identified Mail (DKIM) signing and verifying milter

opendkim

DomainKeys Identified Mail (DKIM) signing and verifying milter

The OpenDKIM Project is a community effort to develop and maintain a C library for producing DKIM-aware applications and an open source milter for providing DomainKeys Identified Mail (DKIM) service.
The browser to select images

gallery-uploader

graphical tool to upload pictures and videos to Gallery

Gallery-uploader is a program which makes it immediate to upload pictures and videos to Gallery installations; Gallery (http://gallery.menalto.com/) is an advanced web photo album organizer.