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  • Online Resource  (2)
  • 1995-1999  (2)
  • NetLibrary, Inc  (2)
  • Boston, MA :Safari,  (2)
  • Sed (Computer file)  (1)
  • Sistemas operacionais (computadores) ; larpcal  (1)
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  • Online Resource  (2)
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  • 1995-1999  (2)
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  • 1
    Online Resource
    Online Resource
    Sebastopol, [Calif.] : O'Reilly | Boston, MA :Safari,
    Language: English
    Pages: xxii, 407 p. , ill. ; , 24 cm
    Edition: 2nd ed.
    Series Statement: A Nutshell handbook
    Keywords: Awk ; Sed (Computer file) ; UNIX (Computer file) ; Utilities (Computer programs) ; Electronic books ; local
    Abstract: sed & awk describes two text processing programs that are mainstays of the UNIX programmer's toolbox. sed is a "stream editor" for editing streams of text that might be too large to edit as a single file, or that might be generated on the fly as part of a larger data processing step. The most common operation done with sed is substitution, replacing one block of text with another. awk is a complete programming language. Unlike many conventional languages, awk is "data driven" -- you specify what kind of data you are interested in and the operations to be performed when that data is found. awk does many things for you, including automatically opening and closing data files, reading records, breaking the records up into fields, and counting the records. While awk provides the features of most conventional programming languages, it also includes some unconventional features, such as extended regular expression matching and associative arrays. sed & awk describes both programs in detail and includes a chapter of example sed and awk scripts.This edition covers features of sed and awk that are mandated by the POSIX standard. This most notably affects awk , where POSIX standardized a new variable, CONVFMT, and new functions, toupper () and tolower (). The CONVFMT variable specifies the conversion format to use when converting numbers to strings ( awk used to use OFMT for this purpose). The toupper () and tolower () functions each take a (presumably mixed case) string argument and return a new version of the string with all letters translated to the corresponding case.In addition, this edition covers GNU sed , newly available since the first edition. It also updates the first edition coverage of Bell Labs nawk and GNU awk ( gawk ), covers mawk , an additional freely available implementation of awk , and briefly discusses three commercial versions of awk , MKS awk , Thompson Automation awk ( tawk ), and Videosoft (VSAwk).
    Note: "UNIX power tools"--Cover. - Includes bibliographical references and index
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  • 2
    Online Resource
    Online Resource
    Bonn ; : O'Reilly | Boston, MA :Safari,
    Language: English
    Pages: xix, 732 p. , ill. ; , 24 cm
    Edition: 3rd ed.
    DDC: 005.4/469
    Keywords: Linux ; Operating systems (Computers) ; Sistemas de computacao ; larpcal ; Sistemas operacionais (computadores) ; larpcal ; Electronic books ; local
    Abstract: Once a little-known productivity boost for personal computers, Linux is now becoming a central part of computing environments everywhere. This operating system now serves as corporate hubs, Web servers, academic research platforms, and program development systems. All along it's also managed to keep its original role as an enjoyable environment for personal computing, learning system administration and programming skills, and all-around hacking. This book, now in its third edition, has been widely recognized for years in the Linux community as the getting-started book people need. It goes into depth about configuration issues that often trip up users but are glossed over by other books. A complete, UNIX-compatible operating system developed by volunteers on the Internet, Linux is distributed freely in electronic form and at a low cost from many vendors. Developed first on the PC, it has been ported to many other architectures and can now support such heavy-duty features as multiprocessing, RAID, and clustering. Software packages on Linux include the Samba file server and Apache Web server; the X Window System (X11R6); TCP/IP networking (including PPP, SSH, and NFS support); popular software tools such as Emacs and TeX; a complete software development environment including C, C++, Java, Perl, Tcl/Tk, and Python; libraries, debuggers, multimedia support, scientific and database applications, and much more. Commercial applications that run on Linux range from end-user tools like word processors and spreadsheets to mission-critical software like the Oracle, Sybase, Informix, and IBM DB/2 database management systems. Running Linux has all the information you need to understand, install, and start using the Linux operating system. This includes a comprehensive installation tutorial, complete information on system maintenance, tools for document development and programming, and guidelines for network, file, printer, and Web site administration. New topics in the third edition include: KDE, a desktop that brings the friendliness and ease-of-use of Windows or the Macintosh to Linux Samba, which turns Linux into an office hub that serves files and printers to Microsoft systems PPP, the most popular software for logging into remote systems over phone lines Revised instructions for installation and configuration, particularly covering the Red Hat, SuSE and Debian distributions
    Note: Includes bibliographical references (p. 689-702) and index
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