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Topic: Pipeline (Unix)

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	NMRPipe.html
		UNIX has no strong distinction between commands built into the operating system and programs which are part of "external" applications such as spectral processing.
		UNIX pipes allow commands to be connected together in a series, where the output of one command is used directly as the input to the next command.
		Pipeline communication is also relatively fast, since UNIX pipes are generally implemented via physical memory buffers in the operating system (Stevens, 1992).
	spin.niddk.nih.gov /bax/software/NMRPipe/NMRPipe.html (9391 words)

	Pipeline (Unix) - Wikipedia, the free encyclopedia
		In Unix and other Unix-like operating systems, a pipeline is a set of processes chained by their standard streams, so that the output of each process ("stdout") feeds directly as input ("stdin") of the next one.
		Unix pipelines should not be confused with other data processing pipelines found in modern computer systems, although the general concept is quite similar.
		The pipeline concept and the vertical-bar notation was invented by Douglas McIlroy, one of the authors of the early command shells, after he noticed that much of the time they were processing the output of one program as the input to another.
	en.wikipedia.org /wiki/Pipeline_(Unix) (1244 words)

	Pipeline (computer) - Wikipedia, the free encyclopedia
		The elements of a pipeline are often executed in parallel or in time-sliced fashion; in that case, some amount of buffer storage is often inserted between elements.
		Instruction pipelines, such as the classic RISC pipeline, which are used in processors to allow the parallel execution of two or more consecutive instructions from a nominally sequential stream; the processing elements are the logical circuits that implement the various stages of an instruction (address decoding and arithmetic, register fetching, cache lookup, etc.).
		Software pipelines, consisting of multiple processes arranged so that the output stream of one process is automatically and promptly fed as the input stream of the next one.
	en.wikipedia.org /wiki/Pipeline_(computer) (558 words)

	[No title]
		For example, May 18, 1994 USD:3-22 An Introduction to the UNIX Shell ls `echo "$1"` is equivalent to ls $1 Command substitution occurs in all contexts where parameter sub- stitution occurs (including here documents) and the treatment of the resulting text is the same in both cases.
		May 18, 1994 An Introduction to the UNIX Shell USD:3-27 The use of trap is illustrated by this modified version of the touch command (Figure 4).
		Since there is no signal 0 in UNIX it is used by the shell to indicate the commands to be executed on exit from the shell pro- cedure.
	www.softlab.ece.ntua.gr /facilities/documentation/unix/docs/sh.txt (6004 words)

	Linux Pipeline \| Unix: Not Dead Yet (Site not responding. Last check: )
		The Unix business is strong and growing, and Unix servers remain the computers of choice for businesses that need high-powered computing.
		IBM's Unix offerings are almost exclusively based on its Power processor architecture, and the company has gained 15% in market share during the past three years.
		Around 60% of the Unix servers shipped by HP continue to be based on its PA-RISC processor, which the vendor is phasing out in favor of the Itanium processor that HP co-developed with Intel, which can run the company's HP-UX operating system.
	www.linuxpipeline.com /170701338?cid=RSSfeed (854 words)

	Reference.com/Encyclopedia/Unix
		Unix or UNIX is a computer operating system originally developed in the 1960s and 1970s by a group of AT&T Bell Labs employees including Ken Thompson, Dennis Ritchie, and Douglas McIlroy.
		The Unix systems are characterized by various concepts: plain text files, command line interpreter, hierarchical file system, etc. In software engineering, Unix is mainly noted for its use of the C programming language and the so-called Unix philosophy.
		The present owner of the UNIX trademark is The Open Group, while the present claimants on the rights to the UNIX source code are The SCO Group and Novell.
	www.reference.com /browse/wiki/Unix (3299 words)

	Taxonomy of Unix IPC Methods
		Unix's popen(3) call can set up either an input pipe or an output pipe for a shellout, but not both for a slave process —; this seems intended to encourage simpler programming.
		Unix signals are a form of soft interrupt; each one has a default effect on the receiving process (usually to kill it).
		All modern Unixes support BSD-style sockets, and as a matter of design they are usually the right thing to use for bidirectional IPC no matter where your cooperating processes are located.
	www.faqs.org /docs/artu/ch07s02.html (6374 words)

	Systems Management Pipeline \| Unix
		For 35 years, the Unix operating system has been a mainstay of the computer industry, from its origins as a time-sharing system used by horn-rimmed academics to its central role running some of today's most powerful servers.
		Spending for Unix licenses and maintenance was just over $2 billion in 2004, down $51 million from the year before, according to IDC, which predicts the market will be stagnant over the next few years.
		Unix server revenue (IDC calls it "factory revenue") amounted to $3.9 billion in the third quarter of 2005, a 0.4% decline compared with the same period a year earlier, while unit shipments dropped 13.7% year to year.
	www.systemsmanagementpipeline.com /177103681?cid=rssfeed_pl_smp (936 words)

	[No title]
		Summarizing how pipes found their way into Unix, Vyssotsky notes that Thompson put them in, but "it was McIlroy who said, `look you ought to do it.' Pipes, like most things in Unix were not a radically new idea."(38) He describes how similar ideas had appeared in other languages like SIMULA as early as 1967.
		Once the Unix kernel was coded in C, it would become possible to implement Unix on different computers without having to rewrite the majority of the code.
		The contributions to the evolution of Unix by researchers at Bell Labs and then by those at the University of California at Berkeley, and other users and programmers around the world who continued the development of Unix, are an important achievement in the development of the process of software creation.
	www.columbia.edu /~rh120/ch001j.c11 (8764 words)

	My views: Unix shell pipeline: Making it multi-lane, Avoiding stop-n-go
		This is a CS technical post related to using unix command-line.
		Shell pipeline is the concept of attaching the stdout of a process to the stdin of another process.
		This is one of those beautiful unix concepts that stood the test of time.
	kar1107.blogspot.com /2006/09/unix-shell-pipeline-making-it-multi.html (1367 words)

	Technology Support - Introduction to UNIX OS
		After any UNIX command is typed on the keyboard, the RETURN key must be pressed to execute the command.
		The interface between the user and the UNIX operating system is called a shell.
		form conditional sequences in which the execution of pipelines on the right depends upon the success or failure, respectively, of the pipeline on the left.
	www.depts.ttu.edu /itts/documentation/unix/unix1.html (2437 words)

	Installing the Pipeline
		When using a UNIX workstation to configure and monitor a Pipeline, you need a computer with a serial communication port capable of transmitting data at 9600 bits per second.
		Make a direct connection to the Pipeline (through the serial port to which the Pipeline is connected, as described in Connecting to the Terminal port).
		In some cases, it may be useful to mount the Pipeline on a wall rather than putting it on a flat surface.
	www.hal-pc.org /~ascend/Pipeline/pipe130/6.0.0/strthere/install.htm (2810 words)

	Unix Tutorial-CS Dept-WSU
		Unix allows you to connect processes, by letting the standard output of one process feed into the standard input of another process.
		The head command gets the first 75 lines of the file, and passes them down the pipeline to tail.
		Filters can be placed anywhere in a line that enables them to help direct Unix to do what you want it to do.The common characteristic of all Unix filters is that they can read input from standard input, process it in some manner, and list the results in standard output.
	www.cs.wayne.edu /labPages/Unix_T/pipes.html (584 words)

	Overview of CommandShell (Site not responding. Last check: )
		It lacks some elements of Unix shell syntax, and does not provide terminal emulation, but it adds some nice Smalltalk enhancements such as a text editor which works in a command pipeline, and the ability to evalute Smalltalk expressions in a command pipeline with unix commands.
		In the case of a traditional command-line interface, such as a Unix shell, the command is usually the name of a program, and the modifiers are parameters passed to the program to influence its behavior.
		Once the command proxy pipeline has been created, the individual process proxies are evaluated in such a way that they appear to execute in parallel, with each proxy reading its input from a pipe connected to its predecessor in the pipeline, and writing its output to a pipe connected to its successor in the pipeline.
	minnow.cc.gatech.edu /squeak/2153 (1850 words)

	Serving Up Consolidation
		UNIX support at Wachovia Corp. was spiraling out of control.
		The bank was also on the verge of purchasing a new server for the UNIX scheduling package, which was instead loaded onto the cluster.
		"UNIX consolidation is a very challenging environment, in that the applications, utilities and subsystems that you try to consolidate onto a single platform all have to align very tightly," he explained.
	www.financetech.com /showArticle.jhtml?articleID=14701860 (1113 words)

	DEEP2 DEIMOS Pipeline
		The pipeline is based upon the Sloan Digital Sky Survey (SDSS) spectral reduction package as written by David Schlegel, Scott Burles, and Doug Finkbeiner.
		Nearly all of the pipeline code is written in IDL and is maintained under CVS, a powerful unix utility that is available on all unix platforms.
		The success of the pipeline will undoubtedly vary depending on the choice of grating, the wavelength range of the data, and the slitmask design specifications.
	astron.berkeley.edu /~cooper/deep/spec2d (634 words)

	Pipeline II
		Pipeline II The GLAST *pipeline* is a software mechanism for organizing and executing massively parallel computing projects.
		Externally, the pipeline offers a general framework within which to organize and execute the desired data processing.
		Syntax: pipeline where command is one of: createStream where is the name of the task to create (including optional version number) is the stream number to create.
	glast-ground.slac.stanford.edu /workbook/pages/pipelineII/pipelineII.htm (1034 words)

	Unix as programming language \| Lambda the Ultimate
		Attempts to allow typed data pipelines (as in Microsoft's new shell) are a great idea, but bringing this to Unix would probably require establishing a new data processing hegemony and re-implementing ls, ps and their many friends, which of course flies in the face of Unix culture in many respects.
		As part of a unix pipeline workflow, I would like to be able to feed the solver meeting requests that may conflict with an already populated calendar and have it propose scheduling solutions.
		What's really nice about UNIX pipes is that every time you get to another pipe character, if you have in your mind what the stream of data looks like at that point, you can forget about what you've typed so far and just concentrate on the remainder of the process.
	lambda-the-ultimate.org /node/1282 (4917 words)

	Pipes -- powerful and elegant programming paradigm
		Another innovation of UNIX was the development of pipes, which gave programmers the ability to string together a number of processes for a specific output.
		At the Unix shell, piping is the fundamental form of program combination: pipes connect the standard output and standard input of many small tools together in a virtual “pipeline” to solve problems much more sophisticated than any of the individual programs can deal with.
		Unix pipes are inherently unidirectional channels from one process to another process, and cannot be easily turned into bidirectional or multicast channels.
	www.softpanorama.org /Scripting/pipes.shtml (6166 words)

	Unix Tools as Visual Programming Components \\ in a GUI-builder Environment
		In our case we were able to use Unix components already encapsulated in a COM framework and experiment with two different technologies for creating ActiveX controls, one based on the C++ Active Template Library (ATL), and one based on the ability of Visual Basic to create ActiveX controls.
		Although in theory pipelines can be used to pass binary data and complex structures, Unix systems customarily pass records delimited by newlines and delimit fields by whitespace or another special character.
		As an example, the operation of the pipeline at runtime can be visualised by colouring the components to indicate their level of activity.
	www.spinellis.gr /pubs/jrnl/2001-SPANDE-VUFC/html/vufc.html (5607 words)

	STnG — a Streaming Transformations and Glue framework
		The interface between components in a UNIX pipeline is about as simple as it can get — all a process needs to participate is to read a stream of bytes and write another one.
		In extreme cases, input to a pipeline may come from a “parser” that simply reports a fictitious start element tag, followed by the entire content of a text document as character data with no XML structure, followed by a fictitious element end tag.
		It describes linear pipelines that operate on entire documents (document-sized chunks, if you will) and is mainly concerned with the order of operations to be performed on a document and input and output redirection.
	www.idealliance.org /papers/extreme03/html/2003/Krupnikov01/EML2003Krupnikov01.html (5624 words)

	Hotwire - A free object-oriented hypershell
		It supersets Unix out-of-process bytestream pipelines in favor of an in-process object-oriented pipeline, while still allowing invocation of out-of-process Unix binaries which output text.
		Hotwire does have a small Unix-inspired pipeline syntax, but a major goal of the project is to make it easy for users to leverage well-known existing programming languages such as Python and Ruby - and (where available) Unix shell script.
		Unix terminal emulators can display not only shells running on the local system, but also on remote systems over protocols such as SSH.
	cdn.hotwire-shell.org /index.html (1017 words)

	The Caml Development Kit - Libraries shell Shell (Site not responding. Last check: )
		If ~stdout is present, the last process of the pipeline writes output to the passed consumer.
		If ~stderr is present, all processes of the pipeline write their error messages to the passed consumer.
		If the pipeline crashes, the function ~epipe is called, and the descriptor is closed.
	pauillac.inria.fr /cdk/newdoc/htmlman/cdk_328.html (2147 words)

	Guile Tutorial
		In the UNIX world, the traditional scripting language is the Bourne shell, which allows many UNIX commands to be executed in sequence, or in a pipeline.
		Traditional UNIX commands are cleverly written to work well when put together in a script.
		UNIX programmers noticed, more than 25 years ago, that scripting languages can do serious work, so the Bourne shell was written to have variables, operators and control structures, just like a full-featured programming language.
	www.delorie.com /gnu/docs/guile/guile-tut_3.html (502 words)

	Linux Pipeline \| Unix, Linux Firms Focus On Security As Selling Point
		As expected, archrivals Sun, Red Hat and Novell unveiled major security improvements for their respective Unix and Linux platforms this week.
		Meanwhile, archrival Red Hat, whose Linux distribution has stolen many Unix converts, also announced at the RSA conference that its Red Hat Enterprise Linux 4 distribution has achieved CAPP/EAL 4+ certification through a partnership with IBM.
		Partners of Sun, Red Hat, Microsoft and Novell will be able to harness the new capabilities to address compliance issues in each vertical industry and enable more advanced authentication and identity management capabilities for their Unix, Windows and Linux customers.
	www.linuxpipeline.com /180202544?cid=rssfeed_pl_lxp (722 words)

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