Dear Friends
How i make shortcut in Tru64 unix for example make a shortcut for mail , i want to make a shortcut under / root
the bath for mail # cd /var/spool/mail
Regards, (1 Reply)
Hey, im new to Linux...totally new.
I know there is a way to assign a type of variable or something to a directory, so instead of having to type "cd /var/www" etc, I could just assign a variable to the directory, so I could just do "cd $assignedvar" and it would be there...if you get what I... (0 Replies)
Hello all
im trying to get the Comparison operators from string with out much success
I have :
$myvar = "if (hhhh <= blah.count )" ;
when I do :
if ($myvar =~ m/.*().*/){
.......
}
I keep getting the "=" and not "<="
why ? (3 Replies)
hi guys
im a newbie to shell scripting and would appreciate any help possible. my questions will be very straight forward and relatively trivial to most of you.
as the thread title is asking, what are the operators??
i know there's the != and =, but for bourne and c shell, what are the... (12 Replies)
I really don't know the meaning of these operators. Could someone explain the meanings so I can make my test for today?
<, <=, ==, !=, >=, >,
||, &&, ! ~ , !~
Thanks! (1 Reply)
Hi, I want to match a column of one file with many others and take the average of each one and put them into one file (I know sounds complicated).
so the 1st file is just a list of names that I want to match with the 2nd file that have names along with rows of values.
awk... (4 Replies)
Discussion started by: kylle345
4 Replies
LEARN ABOUT BSD
iswalnum
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)