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Topic: Write (Unix)

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	Unix - Wikipedia, the free encyclopedia
		Unix or UNIX is a computer operating system originally developed in the 1960s and 1970s by a group of ATandT 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, treating devices and certain types of inter-process communication as files, etc. In software engineering, Unix is mainly noted for its use of the C programming language and for the Unix philosophy.
		During the late 1970s and early 1980s, Unix's influence in academic circles led to massive adoption (particularly of the BSD variant, originating from the University of California, Berkeley) of Unix by commercial startups, the most notable of which is Sun Microsystems.
	en.wikipedia.org /wiki/Unix (4954 words)

	Eastern Michigan University
		Be in C shell and write Unix command to show how long each of our Unix machines have been running.
		Write a Unix command to display all the setups of your current terminal.
		Write a Unix command to find number of current emunix login users who are not using node poe.
	www.emunix.emich.edu /~khailany/files/416_ex1_w4 (649 words)

	Eastern Michigan University
		Write a Unix command to display the name of the computer type of your host.
		Write a Unix command to find number of user who are not currently using your host (that is not using the host which you are currently using).
		Write a Unix command to display ‘Current month is’ complete name of the month ‘ today is’ complete day’s name.
	www.emunix.emich.edu /~khailany/files/624_quiz_1_sec_2_f2_a.htm (734 words)

	UNIX man pages : write () (Site not responding. Last check: 2007-10-12)
		When you run the write command, the user you are writing to gets a mes- sage of the form: Message from yourname@yourhost on yourtty at hh:mm...
		If the user you want to write to is logged in on more than one termi- nal, you can specify which terminal to write to by specifying the ter- minal name as the second operand to the write command.
		The traditional protocol for writing to someone is that the string `-o', either at the end of a line or on a line by itself, means that it's the other person's turn to talk.
	unixhelp.ed.ac.uk /CGI/man-cgi?write (285 words)

	Jan Wolter's Unix Write Program
		Orville write is a reimplementation of the Unix write program adds many nice features while remaining close to the standard Unix program in spirit.
		Orville write was written for use on M-Net and Grex, both public access unix systems in Ann Arbor, where writing to each other was a popular adjunct to the conferencing and chat areas.
		Our original purpose in rewriting write was that our old system (before you were born, kid) had people's tty's writable to others when their message perms were on, and this led to too much "cat /etc/termcap > /dev/tty04" kind of stuff.
	www.unixpapa.com /write.html (1468 words)

	Microsuck Forums - Linus didn't write Linux
		This is why the the Unix developers at Bell Labs itself approved of the book — they saw it not as theft from them but as a sign of healthy community, and knew perfectly well they were getting back huge amounts of value from outside contributors.
		He said he was writing a book on the history of UNIX and would like to interview me. Since I have written 15 books and have been involved in the history of UNIX in several ways, I said I was willing to help out.
		Furthermore, my contact with the UNIX group at Bell Labs was not a secret; I even thanked them all for having me as a summer visitor in the preface to the first edition of my book Computer Networks.
	www.fuckmicrosoft.com /forums/printthread.php?t=2990 (5296 words)

	Unix Virus (Site not responding. Last check: 2007-10-12)
		UNIX hasn't yet developed a virus problem because UNIX is a very hostile environment for a virus.
		Since root should be the only user with write access to the raw disk devices, the virus could not get into the boot sector of the disk.
		UNIX viruses would be hard to write, and mostly ineffective, so the jerks who write viruses don't waste time on them.
	www.vetsolutions.co.uk /premvet/faq/0157.html (447 words)

	Basics of the Unix Philosophy (Site not responding. Last check: 2007-10-12)
		The only way to write complex software that won't fall on its face is to hold its global complexity down — to build it out of simple parts connected by well-defined interfaces, so that most problems are local and you can have some hope of upgrading a part without breaking the whole.
		In our discussion of what Unix gets wrong, we observed that the designers of X made a basic decision to implement “mechanism, not policy”—to make X a generic graphics engine and leave decisions about user-interface style to toolkits and other levels of the system.
		Unix experience tells us that the marginal extra overhead of making data layouts self-describing is paid back a thousandfold by the ability to evolve them forward without breaking things.
	www.faqs.org /docs/artu/ch01s06.html#ftn.id2873492 (4869 words)

	[No title]
		In a Unix process, file descriptors 0, 1, and 2 are set up implicitly to be associated with standard input, standard output, and standard error, respectively.
		When executing Unix read or write system calls on behalf of a user process, the system call is passed a file descriptor (an integer) as the first parameter, together with a buffer for the bytes to be read/written and the number of bytes to read/write.
		Size is the number of bytes to write, and id should be 1 for standard output since we aren't worrying about any other output files yet.
	condor.depaul.edu /~glancast/546class/docs/lec4.html (1308 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)

	Yiddish and Unix
		Write in YIVO transliteration and convert, if you want, to some other form by using the shraybmashinke.
		In Unix, multiple-key translations are not available in the kernel or X-windows level (so far as I know), but some applications support them, in particular, Yudit and Vim 6.0.
		In Unix, Yudit only uses Unicode, and Vim can be set to use Unicode (and to translate to it from other encodings).
	www.cs.uky.edu /~raphael/yiddish/unix.html (1925 words)

	Some notes on the "Who wrote Linux" Kerfuffle
		The history of UNIX and its various children and grandchildren has been in the news recently as a result of a book from the Alexis de Tocqueville Institution.
		Also Remember (if you are old enough) that by 1987, a university educational license for UNIX cost $300, a commercial license for a university cost $28,000, and a commercial license for a company cost a lot more.
		As it turned out, the GNU OS sort of went nowhere (although many UNIX utilities were written) and Berkeley UNIX got tied up in a lawsuit when its designers formed a company, BSDI, to sell it and they chose 1-800-ITS UNIX as their phone number.
	www.seketeli.org /dodji/articles/history-of-unix.html (2877 words)

	SimGear: SGIOChannel class Reference
		The write() method is modeled after the write() Unix system call and is analogous to the read() method.
		The writestring() method is a simple wrapper that will calculate the length of a null terminated character array and write it to the output channel.
		The close() method is modeled after the close() Unix system call and will close an open device.
	www.menet.umn.edu /~curt/simgear/doxygen/classSGIOChannel.html (439 words)

	Write (Unix) - Wikipedia, the free encyclopedia
		are used to write messages to another user.
		The most popular variation sends a message directly to another user's TTY, displaying a message of the form:
		writes a message to a user on a Windows network, using the SMB packet format.
	en.wikipedia.org /wiki/Write_(Unix) (73 words)

	The UNIX Forums - tar write err (Site not responding. Last check: 2007-10-12)
		If I use tar to copy to a tape and the tape is write protected, I only get the message 'tar: tape write err' if there are a few files to copy.
		My guess is that tar is using fopen(), setvbuf(), fwrite(), and fclose() (or a very similiar set of functions) to write to the tape device.
		So if you write enough stuff to the tape that a fwrite() needs to flush the buffer, tar detects the problem and displays an error message.
	www.unix.com /showthread.php?t=6243 (440 words)

	TLEN5833 UNIX Introduction (Site not responding. Last check: 2007-10-12)
		The basic philosophy of UNIX is to have small pieces (commands), each of which do 1 thing.
		This means that good UNIX users will become programmers who will write shell scripts at the drop of a hat (more on this later!).
		So, UNIX is not particularly easy to learn, but once you learn it, it is a very powerful, user-freindly environmnet in which to work.
	morse.colorado.edu /~tlen5833/uhist.htm (506 words)

	[No title]
		Unix keeps track of all the processes in an internal data structure called the Process Table (listing command is ps -el).
		Historic Unix uses Swapping — entire process is transferred to the main memory from the swap device, whereas the Unix System V uses Demand Paging — only the part of the process is moved to the main memory.
		In situations like, where the copy on write bit of a page is set and that page is shared by more than one process, the Kernel allocates new page and copies the content to the new page and the other processes retain their references to the old page.
	www.geocities.com /hemanthb2010/unix.doc (4992 words)

	CS 160B - Syllabus
		Prerequisite: CS 160A, Introduction to Unix (was CIS 167.) I assume that you have a basic knowledge of user level Unix.
		Unix shell scripts are simply groups of Unix commands collected together into a file that can be run as a batch.
		By the end of the class, I expect that you will be able to read and write Unix scripts with more confidence.
	fog.ccsf.cc.ca.us /~pwood/c160b-sylgen.html (1358 words)

	Unix:
		It can read or write its own stack and data but it cannot read or write stacks of other processes.
		Delayed write strategy is not good as sometimes the system may not be consistent.
		Use of buffer cache requires an extra data copy when reading and writing into user processes.A user process writes the data into the kernel and the kernel writes it to the disk.
	web.syr.edu /~nshenvi/summaryUnix.htm (917 words)

	Information Management Systems & Services
		The IMSS UNIX Cluster is available for logins from the Student Lab (see the Getting Started on the IMSS UNIX Cluster and the Sun Console Guide) or over the campus network or dial-up lines.
		When you log in, the UNIX login program starts up a command "shell." Users do not deal with the operating system directly.
		Unix allows you to redirect output which would otherwise go to the screen by using a
	www.imss.caltech.edu /cms.php?op=wiki&wiki_op=view&id=324 (6035 words)

	Using REELlibrarian to read and write tapes on UNIX
		The "rformat" defines the default value used to write the files on the tape, but a different value may be specified in the actual write command.
		You cannot write five files on a tape, then rewrite file 2 and expect to preserve files 3, 4, and 5.
		Write the files, specifying the record and block size for each file.
	www.udel.edu /topics/tapes/reel.lib.html (5054 words)

	TB Unix Cheat Sheet (Site not responding. Last check: 2007-10-12)
		Unix permissions concern who can read a file or directory, write to it, and execute it.
		The single quotes tell Unix that the enclosed text is one command.
		Unix can't rename a bunch of files at once the way DOS can.
	www.rain.org /~mkummel/unix.html (1107 words)

	Basic Unix Commands (Site not responding. Last check: 2007-10-12)
		The next three characters, "rwx" show that the owner has read, write, and execute permissions on this file.
		For example, "man write" will give you the manual pages for the write command, and "man 2 write" will give you the system call for "write" (usually from the C or Pascal programming language).
		Write won"t work if the other user has typed "mesg n".
	www.emba.uvm.edu /CF/basic.html#write (2020 words)

	Introduction into event-driven programming (Site not responding. Last check: 2007-10-12)
		This may be best explained by an example: Consider you want to read from a pipeline, convert all arriving lowercase letters to their corresponding uppercase letters, and finally write the result into a second pipeline.
		A conventional solution works as follows: A number of bytes is read from the input pipeline into a buffer, converted, and then written into the output pipeline.
		The input and output pipelines may be connected with any other endpoint of pipelines, and may be arbitrary slow.
	www.ocaml-programming.de /packages/documentation/equeue/users-guide/c34.html (1079 words)

	[No title]
		;;; -- Package: UNIX* -- ;;; ;;; ********************************************************************* ;;; This code was written as part of the CMU Common Lisp project at ;;; Carnegie Mellon University, and has been placed in the public domain.
		The second ;;; only has meaning in the second case and is the unix errno value.
		If an error occurred the first value is NIL and the second the unix error code." (with-alien ((fds (array int 2))) (syscall ("pipe" (* int)) (values (deref fds 0) (deref fds 1)) (cast fds (* int))))) ;;; Unix-read accepts a file descriptor, a buffer, and the length to read.
	www.cs.cmu.edu /afs/cs.cmu.edu/project/clisp/src/16/code/unix.lisp (1892 words)

	Oracle FAQ: Oracle for UNIX
		Unix is one of the most important operating systems in use today, perhaps even the most important.
		With the Unix "what" command one can see what patches are applied to an executable.
		The Unix command set is so rich that we can never list them all, however, if you are a beginner, you may find the following commands useful.
	www.orafaq.com /faqunix.htm#SGADEF (2770 words)

	Write software for multiple UNIX platforms
		If you write software for more than one UNIX® platform, you are aware of the difficulty of getting your software to compile on two platforms.
		This tutorial covers tools and tricks that can make the process of supporting different UNIX platforms significantly easier at the code level.
		The reason is not the lack of tools or a binary compatibility issue, but rather the problems with the header files and functions that set up a standard UNIX environment.
	www-128.ibm.com /developerworks/edu/dw-esdd-multiunix-i.html (134 words)

	CIS 167S - Syllabus
		I assume that you have a basic knowledge of Unix, and some exposure to Shell Scripting or, alternatively, a knowledge of programming.
		For some this is not enough practice to prepare them for later classes in Unix System and Network Administration.
		The other account will be a Unix account on the CCSF student server.
	fog.ccsf.cc.ca.us /~pwood/c167sHs02.html (1305 words)

	Network programming under Unix systems
		This document is meant to provide people who already have a knowledge of Programming in C, with the knowledge necessary to write Unix programs that use the network (actually, the Internet).
		The idea is to explain only the really necessary information for writing client and server applications, leaving less "urgent" information for the appendices, and even less important information for the "see also" part.
		The programmer on a Unix machine is not saved from having to deal with this kind of information, and we'll see how the translation of byte orders is solved when we get down to programming.
	users.actcom.co.il /~choo/lupg/tutorials/internetworking/internet-theory.html (3155 words)

	The Art of Unix Programming
		PDF and PostScript are trademarks of Adobe, Inc. UNIX is a trademark of The Open Group.
		Rule of Parsimony: Write a big program only when it is clear by demonstration that nothing else will do.
		Rule of Generation: Avoid hand-hacking; write programs to write programs when you can.
	www.faqs.org /docs/artu (612 words)

	Bookpool: The Art of UNIX Programming
		Learn how the UNIX and Linux masters design software that is fast, portable, reuseable, modular, and long-lived.
		While not a cookbook, The Art of UNIX Programming does provide an extensive set of rule-of-thumb and the-right-way recommendations for designing interfaces and for generally maintaining a UNIX style approach to implementation.
		I find considerable evidence within the text of The Art of UNIX Programming suggesting that the original title may have been The Zen of UNIX Programming, or maybe Zen and The Art of UNIX Programming,.
	www.bookpool.com /.x/pbx84hrb8i/sm/0131429019 (737 words)

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