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rosettacode>Martinmspedersen

Revision as of 00:49, 26 November 2007 (view source) MikeMol (talk \| contribs) (Added implementation and stub templates)		Latest revision as of 22:52, 5 November 2019 (view source) rosettacode>Martinmspedersen m (add info about GMP)
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Line 1: {{implementation\|AWK~~}}{{stub~~}} ''gawk'' is [[GNU]] awk, the first free AWK implementation. ''gawk'' is compatible with [[nawk]]. ''gawk'' also adds several extensions to its language. Many systems, and most GNU/[[Linux]] distros, use ''gawk'' as their default ''awk''. (Older [[BSD]] systems also used ''gawk'' as their default ''awk'', until newer BSD systems switched to ''[[nawk]]''.) ''gawk'' was the only free ''awk'', until the 1991 release of ''[[mawk]]''. == Gawkisms == A "gawkism" is an extension that works with ''gawk'', but not with other AWK variants. Gawk's own manual identifies GNU extensions, so programmers know which features require ''gawk''. Some gawkisms are * GNU-style regular expressions. * extra built-in functions, like <code>asort()</code> and <code>gensub()</code>. * [[Korn Shell\|Korn]]-style coprocesses. * TCP and UDP networking with "/inet/". * Support for large number with the GMP library. * ''(since gawk 4.0.0)'' arrays of arrays, like <code>ary[2][3] = 4</code>. * ''(since gawk 4.0.0)'' indirect function calls, like <code>str = "foo"; @str() # calls foo()</code>. * other GNU extensions in the manual. == Links == * Home page: [http://www.gnu.org/software/gawk/ gawk] * Manual: [http://www.gnu.org/software/gawk/manual/ ''Gawk: Effective AWK Programming'']