Sponsored Content
Full Discussion: Converting grep to awk
Top Forums Shell Programming and Scripting Converting grep to awk Post 302644789 by neutronscott on Tuesday 22nd of May 2012 12:20:48 PM
Old 05-22-2012
alnum is POSIX character class. gawk is ok with those. the { } is what is not supported by many awk. Smilie it is newer i guess and gawk didn't want to break itself

Code:
[mute@geek ~]$ echo foo | gawk '/^[[:alnum:]]{3}$/'
[mute@geek ~]$ echo foo | gawk --posix '/^[[:alnum:]]{3}$/'
foo

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..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Converting a line into a list using awk or sed

Hello, I am trying to convert a line into a list using awk or sed. Line: 345 897 567 098 123 output: 345 897 567 098 123 thanks (7 Replies)
Discussion started by: smarones
7 Replies

2. UNIX for Dummies Questions & Answers

Converting HP-UX awk to Solaris

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)
Discussion started by: galuzan
3 Replies

3. Shell Programming and Scripting

Converting txt file into CSV using awk or sed

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)
Discussion started by: ksk
8 Replies

4. Shell Programming and Scripting

Converting to matrix-like file using AWK

Hi, Needs for statistics, doing converting Here is a sample file Input : 1|A|17,94 1|B|22,59 1|C|56,93 2|A|63,71 2|C|23,92 5|B|19,49 5|C|67,58 expecting something like that Output : 1|A|17,94|B|22,59|C|56,93 2|A|63,71|B|0|C|23,92 5|A|0|B|19,49|C|67,58 (11 Replies)
Discussion started by: fastlane3000
11 Replies

5. Shell Programming and Scripting

awk - problems by converting date-format

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)
Discussion started by: IMPe
7 Replies

6. Shell Programming and Scripting

Converting awk script from bash to csh

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)
Discussion started by: ncwxpanther
7 Replies

7. Shell Programming and Scripting

Converting shell/awk to ruby

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)
Discussion started by: SkySmart
1 Replies

8. Shell Programming and Scripting

Using awk for converting xml to txt

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)
Discussion started by: Viswanatheee55
8 Replies

9. UNIX for Beginners Questions & Answers

Converting awk to perl

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)
Discussion started by: Eric7giants
1 Replies

10. UNIX for Beginners Questions & Answers

Converting awk to perl

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
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 08:35 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy