Advanced Programming in the UNIX Environment (3rd Edition) by W. Richard Stevens, Stephen A. Rago

By W. Richard Stevens, Stephen A. Rago

PLEASE observe: most likely end result of the huge measurement or excessive pagecount e-ink readers seem to have trouble rendering the pages of this publication. it is going to open appropriately on computer-based readers or phones/tablets (Android, iPad, etc). this can be most likely only a reminiscence factor as a result of in most cases weaker on ereaders - the dossier supplied this is now not malformed or corrupt.

For greater than 20 years, critical C programmers have trusted one e-book for useful, in-depth wisdom of the programming interfaces that force the UNIX and Linux kernels: W. Richard Stevens’ complicated Programming within the UNIX® surroundings . Now, once more, Rich’s colleague Steve Rago has completely up to date this vintage paintings. the recent 3rd variation helps today’s top structures, displays new technical advances and most sensible practices, and aligns with model four of the one UNIX Specification.Steve rigorously keeps the spirit and process that experience made this booklet so precious. construction on Rich’s pioneering paintings, he starts off with records, directories, and methods, conscientiously laying the basis for extra complicated ideas, akin to sign dealing with and terminal I/O. He additionally completely covers threads and multithreaded programming, and socket-based IPC.

This variation covers greater than seventy new interfaces, together with POSIX asynchronous I/O, spin locks, boundaries, and POSIX semaphores. so much out of date interfaces were got rid of, apart from a number of which are ubiquitous. approximately all examples were validated on 4 smooth systems: Solaris 10, Mac OS X model 10.6.8 (Darwin 10.8.0), FreeBSD 8.0, and Ubuntu model 12.04 (based on Linux 3.2).

As in past variants, you’ll study via examples, together with greater than 10000 traces of downloadable, ISO C resource code. greater than 400 method calls and features are validated with concise, entire courses that basically illustrate their utilization, arguments, and go back values. To tie jointly what you’ve realized, the ebook offers numerous chapter-length case reviews, every one reflecting modern environments.

Advanced Programming within the UNIX® atmosphere has helped generations of programmers write code with remarkable energy, functionality, and reliability. Now up to date for today’s platforms, this 3rd version might be much more helpful.

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A number of good books have been written on the topic. Also by convention, the file in which the script is saved should have an extension, indicating the shell under which it is to be run. tc The relevant commands are as follows: @ @ name = expr @ name[index] = expr @ name|-@ name[index]|-- Display or assign the value of shell variables. Example: To increment the shell variable n, use @n++; break Causes execution to resume after the end of the nearest enclosing foreach or while. = 1) break; end breaksw The breaksw statement is used in conjunction with the switch and case statements.

Successfully pressing in the middle of a line will shift any remaining text to the right. If the autolist shell variable is set, enter: set autolist the shell will display all the possibilities when it cannot uniquely complete a word, rather than just beeping at you. The shell parses the input buffer to determine whether the word you want to complete should be completed as a filename, command, or variable. The first word in the buffer and the first word following ';', '|', '|&', '&&', or '||' is considered to be a command.

Dirs [-l] [-n|-v] dirs 52 53 -S|-L [filename] dirs -c With no options, the dirs command displays the directory stack. Example: To display the contents of the directory stack, use dirs popd [-p] [-l] [-n|-v] [n] With no arguments, pops the top directory off the stack and returns it. An argument of 'n' discards the nth entry in the stack. The popd command will also display the new directory stack after the pop operation, unless the pushdsilent shell variable is set. Example: Suppose that your current directory was dir1 and your directory stack (see the previous example "dirs") looked like this: dir1 dir2 dir3 Recall that the first element of the directory stack is your current working directory, dir1.

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