VBoekbestellingen gratis bezorgd vanaf 15,- 

VGratis afhalen in de boekhandel

 VBinnen 14 dagen gratis retour bij ruim 100 boekhandels

sed & awk
ISBN
9781449396602
Uitgever
O'Reilly Media
Verschenen
01-03-1997
Taal
Engels
Bindwijze
ebook EPUB
  • Share
  • Share
  • Share
  • Share
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).
Niet leverbaar

Dit artikel wordt niet, of niet meer, door onze leveranciers aangeboden. Je kunt het dan ook niet via de webshop bestellen.

Wel kun je, via de link "Vraag de boekhandel", de boekhandel vragen of zij dit artikel nog op voorraad hebben, er aan kunnen komen, of een alternatief beschikbaar hebben.

Loading...

.
Waarom Libris
Boekbestellingen vanaf € 15,- GRATIS thuisbezorgd.
Kies uit meer dan een miljoen artikelen, waaronder ruim 25.000 Nederlandse ebooks.
Thuis bestellen en bezorgen of afhalen en betalen in de boekhandel.
Ruim 85.000 boeken op werkdagen voor 23.00 besteld, de volgende dag bezorgd
Volg uw bestelling via Track & Trace van PostNL
Bijna 100 aangesloten kwaliteitsboekhandels.
pro-mbookslibr2 : libris