How to ignore characters and print only numbers using awk? Post: 302814869

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iswgraph

ISWGRAPH(3)						     Linux Programmer's Manual						       ISWGRAPH(3)

NAME

       iswgraph - test for graphic wide character

SYNOPSIS

       #include <wctype.h>

       int iswgraph(wint_t wc);

DESCRIPTION

       The  iswgraph  function	is the wide-character equivalent of the isgraph function. It tests whether wc is a wide character belonging to the
       wide character class "graph".

       The wide character class "graph" is a subclass of the wide character class "print".

       Being a subclass of the wide character class "print", the wide character class "graph" is disjoint from the wide character class "cntrl".

       The wide character class "graph" is disjoint from the wide character class "space" and therefore also disjoint from its subclass "blank".

       The wide character class "graph" contains all the wide characters from the wide character class "print"	except	the  space  character.	It
       therefore contains the wide character classes "alnum" and "punct".

RETURN VALUE

       The iswgraph function returns non-zero if wc is a wide character belonging to the wide character class "graph". Otherwise it returns zero.

CONFORMING TO

       ISO/ANSI C, UNIX98

SEE ALSO

       isgraph(3), iswctype(3)

NOTES

       The behaviour of iswgraph depends on the LC_CTYPE category of the current locale.

GNU
								    1999-07-25							       ISWGRAPH(3)

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