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024 3 a| 9781565922259;

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100 1 a| Estabrook, Gigie| Editor4| edt?| UNAUTHORIZED;

245 10 a| Sed and Awkh| [electronic resource];

250 a| 2nd ed.;

260 a| Cambridge : b| O'Reilly Media, Incorporateda| LaVergne : b| Ingram Publisher Services [Distributor];

300 a| 432 p.b| illc| 07.000 x 09.000 in.;

440 0 a| In a Nutshell Ser.;

506 a| Available only to authorized users.;

520 8 a| Annotationb| <div>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).</div>;

538 a| Mode of access: World Wide Web;

650 4 a| Unix (Computer Operating System);

650 4 a| Utilities (Computer Programs);

655 0 a| Electronic books.=| ^A491897;

700 1 a| Robbins, Arnold D.e| Author?| UNAUTHORIZED;

700 1 a| Dougherty, Dalee| Author=| ^A810555;

856 40 z| Full text available from eBooks on EBSCOhostu| https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&AN=2205&scope=site&custid=s5822723&authtype=ip,shib;

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Sed and Awk

Author/creator	Estabrook, Gigi Editor
Other author	Robbins, Arnold D. Author
Other author	Dougherty, Dale Author
Format	Electronic
Edition	2nd ed.
Publication Info	Cambridge : O'Reilly Media, Incorporated LaVergne : Ingram Publisher Services [Distributor]
Description	432 p. ill 07.000 x 09.000 in.
Supplemental Content	Full text available from eBooks on EBSCOhost
Subjects	Unix (Computer Operating System) Utilities (Computer Programs)

Series	In a Nutshell Ser.
Summary	Annotation <div><p><i>sed & awk</i> describes two text processing programs that are mainstays of the UNIX programmer's toolbox.</p><p><i>sed</i> 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 <i>sed</i> is substitution, replacing one block of text with another.</p><p><i>awk</i> is a complete programming language. Unlike many conventional languages, <i>awk</i> is "data driven" -- you specify what kind of data you are interested in and the operations to be performed when that data is found. <i>awk</i> 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 <i>awk</i> provides the features of most conventional programming languages, it also includes some unconventional features, such as extended regular expression matching and associative arrays. <i>sed & awk</i> describes both programs in detail and includes a chapter of example <i>sed</i> and <i>awk</i> scripts.</p><p>This edition covers features of <i>sed</i> and <i>awk</i> that are mandated by the POSIX standard. This most notably affects <i>awk</i>, where POSIX standardized a new variable, CONVFMT, and new functions, <i>toupper</i>() and <i>tolower</i>(). The CONVFMT variable specifies the conversion format to use when converting numbers to strings (<i>awk</i> used to use OFMT for this purpose). The <i>toupper</i>() and <i>tolower</i>() 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.</p><p>In addition, this edition covers GNU <i>sed</i>, newly available since the first edition. It also updates the first edition coverage of Bell Labs <i>nawk</i> and GNU <i>awk</i> (<i>gawk</i>), covers <i>mawk</i>, an additional freely available implementation of <i>awk</i>, and briefly discusses three commercial versions of <i>awk</i>, MKS <i>awk</i>, Thompson Automation <i>awk</i> (<i>tawk</i>), and Videosoft (VSAwk).</p></div>
Access restriction	Available only to authorized users.
Technical details	Mode of access: World Wide Web
Genre/form	Electronic books.
ISBN	9781565922259
ISBN	1565922255 (Trade Paper) Active Record
UPC	636920922254
Standard identifier#	9781565922259
Stock number	00051714

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Sed and Awk

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