Sponsored Content
Full Discussion: question about wc
Top Forums Shell Programming and Scripting question about wc Post 302073091 by vino on Wednesday 10th of May 2006 04:58:35 AM
Old 05-10-2006
'[:alnum:]' doesnt do anything. Rather, it is a character class for alphabets and numbers.

See info -f coreutils --index-search='Character classes'
 

7 More Discussions You Might Find Interesting

1. Programming

Yet Another Question

Now that I have getch() to work, I have yet another problem. BTW, thank you for answering these questions, I do ask a lot, only because I am eager to know, what is a board used for anyways :) Ok, he's the problem... #include iostream.h #include conio.h int main() { char movement; ... (2 Replies)
Discussion started by: mbolthouse
2 Replies

2. Programming

Question?

what is WDFP and WE STATION? (1 Reply)
Discussion started by: billybayou
1 Replies

3. Solaris

vi question

Im trying to edit a 113 meg file in VI and i get the error TMP FILE TOO LARGE. Does someone know how to get around this? Thanks! (1 Reply)
Discussion started by: BG_JrAdmin
1 Replies

4. UNIX for Dummies Questions & Answers

mv question

Hello if I like to move file from defined directories system to new directory that not contained any directories system structure . But I like to create the same file system structure as source directory for example : I have 2 directories: foo1 and foo2 foo1 have directories and foo2 have... (2 Replies)
Discussion started by: umen
2 Replies

5. UNIX for Dummies Questions & Answers

Question

hallo, ik heb hier een vraagje. hoeveel gebruikers kunnen er op 1 unix systeem. hopelijk antwoorden golle nu want ik moet da vinde voor school en die leerkracht zaagt. :p groetjes eu wacht wa was mijne nick ah ja vraagje groetjes vraagje ik kan geen engels dus antwoord liever in het... (1 Reply)
Discussion started by: vraagje
1 Replies

6. Hardware

question

How to add 3 moniters to a pc set up? (2 Replies)
Discussion started by: clicstic
2 Replies

7. AIX

df question

Hi, Can anyone please explain a little about df command. I have following question: Following example is showing % used as 4 where as total free blocks are 15.46 out of 16.00 MB blocks. df -m /test Filesystem MBblocks Free %Used Iused %Iused ... (5 Replies)
Discussion started by: itsabhi9
5 Replies
ISWALNUM(3)						     Linux Programmer's Manual						       ISWALNUM(3)

NAME
iswalnum - test for alphanumeric wide character SYNOPSIS
#include <wctype.h> int iswalnum(wint_t wc); DESCRIPTION
The iswalnum() function is the wide-character equivalent of the isalnum(3) function. It tests whether wc is a wide character belonging to the wide-character class "alnum". The wide-character class "alnum" is a subclass of the wide-character class "graph", and therefore also a subclass of the wide-character class "print". Being a subclass of the wide-character class "print", the wide-character class "alnum" is disjoint from the wide-character class "cntrl". Being a subclass of the wide-character class "graph", the wide-character class "alnum" is disjoint from the wide-character class "space" and its subclass "blank". The wide-character class "alnum" is disjoint from the wide-character class "punct". The wide-character class "alnum" is the union of the wide-character classes "alpha" and "digit". As such, it also contains the wide-char- acter class "xdigit". The wide-character class "alnum" always contains at least the letters 'A' to 'Z', 'a' to 'z' and the digits '0' to '9'. RETURN VALUE
The iswalnum() function returns nonzero if wc is a wide character belonging to the wide-character class "alnum". Otherwise, it returns zero. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +-----------+---------------+----------------+ |Interface | Attribute | Value | +-----------+---------------+----------------+ |iswalnum() | Thread safety | MT-Safe locale | +-----------+---------------+----------------+ CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99. NOTES
The behavior of iswalnum() depends on the LC_CTYPE category of the current locale. SEE ALSO
isalnum(3), iswctype(3) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU
2015-08-08 ISWALNUM(3)
All times are GMT -4. The time now is 03:06 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy