alnum is POSIX character class. gawk is ok with those. the { } is what is not supported by many awk. it is newer i guess and gawk didn't want to break itself
so to help more, please tell me which awk and/or OS you use.
Last edited by neutronscott; 05-22-2012 at 01:30 PM..
Hi,
I am using awk in HP-UX to enter an encrypted entry of the password into /etc/passwd with success, this is the command I am using and it is working great.
cat /tmp/passwd.gal.before|awk -F: -v gal_passwd="encrypted_password" '{OFS=":" ; print $1,gal_passwd,$3,$4,$5,$6,$7}' >... (3 Replies)
Hello folks
I have a txt file of information about journal articles from different fields. I need to convert this information into a format that is easier for computers to manipulate for some research that I'm doing on how articles are cited. The file has some header information and then details... (8 Replies)
Hi
i try to change the date-format from DD/MM/YYYY into MM/DD/YY.
Input-Data:
...
31/12/2013,23:40,198.00,6.20,2,2,2,1,11580.0,222
31/12/2013,23:50,209.00,7.30,2,2,3,0,4380.0
01/01/2014,00:00,205.90,8.30,2,2,3,1,9360.0,223
...
Output-Data should be:
...... (7 Replies)
I have the following script set up and working properly in bash. It basically copies a set of lines which match "AS1100002" from one file and replaces the same lines in another file.
awk -vN=AS1100002* 'NR==FNR { if($1 ~ N)K=$0; next }
{ if($1 in K) $0=K; print }' $datadir/file1... (7 Replies)
any idea on how to get started with this:
shell script:
awk '/{/,/}/' ~/newservices.txt | while read line
do
BEGIN=$(echo "${line}" | egrep ":" | egrep "{")
if ; then
checkname=$(echo $line | awk -F":" '{print $1}' | sed 's_"__g')
echo "{"... (1 Reply)
Hi,
I have a xml script, I converted it to .txt with values comma seperated using awk function. But I want the output values should be inside double quotes
My xml script (Workorders.xml) is shown like below:
<?xml version="1.0" encoding="utf-8" ?>
<scbm-extract version="3.3">... (8 Replies)
Hello. I'm trying to convert an awk script I wrote to perl (which I just started self-teaching). I tried the a2p command but I couldn't make sense of most of it.
Here was the awk code:
BEGIN{
FS = ","
print "NAME\tLOW\tHIGH\tAVERAGE"
a=0
}
{
if(a==0){
a+=1 (1 Reply)
Hello. I'm currently teaching myself Perl and was trying to turn an awk code that I had written into Perl. I have gotten stuck on a particular part and a2p has not helped me at all. The task was to take a .csv file containing a name, assignment type, score and points possible and compute it into a... (1 Reply)
Discussion started by: Eric7giants
1 Replies
LEARN ABOUT OPENDARWIN
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)