Free stdout software for linux

Pcb is a handy tool for the X Window System to design printed circuit boards. All coordinate units are 1/1000 inch. A layout consists of lines, arcs, polygons, elements (lines, pins and arcs), vias, and text information seperated into several layers.

Each of them is identified by a unique name and color (if supported by your display). SMD circuits are also supported. Eight layers are supported, in addition to a silkscreen layer. Visibility of pins and SMD pads and vias is controllable.

All files are 7-bit ASCII, and can be preprocessed with any Unix command that writes its results to stdout (GNU m4 is required). Zooming, unlimited undo, and unlimited redo are supported.

Pcb is intended to be a simple tool without memory and time consuming features like autorouter and autoplacement. Layout related settings are saved together with the data.

TcpCat is a cat like command but for tcp service.

TcpCat is a very lightweight tcp util. It take an IP address and a TCP port as argument, connect to it and give the result back to stdout.

It was written as a lightweight version of netcat. As such it work as the unix cat command but instead of displaying a file it display the result from a tcp service.

ivcall is a small utility which may be used to make automated telephone calls with your isdn4linux supported ISDN card. Outgoing calls are supported as well as incoming calls.
The audio data recieved from the peer is written to STDOUT, audio data read from STDIN is send to the peer. The audio data is in raw 8 bit uLaw 8 KHz format, without any headers.
Installation:
./configure
make
make install
Enhancements:
- cleanups
- add softfax support using spandsp.

Business::Payroll is a series of Perl Modules that provides an API for working with multiple countries federal, state and local taxes.
Payroll Perl Modules project also supports calculating mileage reimbursement values and can handle adjustment entries.
The Business::Payroll module starts with an xml document in the Input format and if everything is successfull, outputs the results in the Output XML format.
Currently only the US is supported and MO is the only supported state. We are not supporting any cities in MO yet. Federal Income, FICA, Medicare and Mileage Rates are all being calculated. We take into account the number of allowances people can claim and the fact that you can withhold more for federal and state.
Federal Income tables are only available for any date >= 07/01/2001.
See the payroll_test.pl script and input.xml file for a sample implementation.
Use process_payroll (in the /usr/bin directory after an rpm install, otherwise in the payroll-x.y directory) to actually process payroll files for real.
process_payroll will take the specified raw xml file and process it. If no errors occured, then you get the result on stdout. If you specify 2 file names the result will go into the second file. You can specify - (for the first file) and it will know to work with stdin. I.e. you can pipe the file to be processed. Ex. cat input.xml | process_payroll - would process input.xml from the stdin and then output the result to stdout.
Enhancements:
- This release has been updated to cover the 2006 tax changes.

icecream project is a non-interactive stream download utility.
It connects to icecast and shoutcast servers and redirects all fetched content to an stdin-capable player or to media files on your disk.
With an option turned on, it can save the stream into different files, each representing the played track. It is also possible to tee the input to both disk and stdout.
Enhancements:
- Support was added for formatted filenames (such as "podcast-%Y-%m-%d").

PipeBandwidth is a program that measures the speed at which data goes through a pipe and prints statistics to stderr.

Basically, it just reads from stdin, writes data back to stdout, and measures the speed. PipeBandwidth can be useful to measure transfer rates while sending data through netcat or compressing with gzip or bzip2.

Arphound project is a tools that listens to all traffic on an ethernet network interface, and reports IP/MAC address pair, as well as events such as IP changes, IP conflict, IP addresses with no RDNS, various ARP spoofing, and packets not using the expected gateway.
Reporting is done to stdout, to a specified file and/or to syslog.
Installation & desinstallation:
The usual way:
make
make install
To uninstall the whole package, stop the program, then:
make uninstall
Enhancements:
- Fixes many glitches that prevented 1.3 from compiling with gcc 3 or 4.
- Fixes bugs that prevented arphound from running on 64-bit architectures.