|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
Problem with regexp for IP-Adress Pattern
Post 302198478 by desertchannel on Friday 23rd of May 2008 03:55:11 AM
05-23-2008
Problem with regexp for IP-Adress Pattern
Hi all Unix Gurus!
Since hours (even days :-)) I'm trying to find the correct pattern to search for IP addesses in text files.
The pattern to find a IP address itself is not too difficult:
'(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|2[0-5]{2})\.){3,}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|2[0-5]{2})'
BUT, of course the above pattern is also matching lines like
v.55.25.1.7v
1.3.6.1.4.1.897.4.6.1 = dce
394983|12.50.1.0.0|
--> which are not really IP addresses
The big question is now to avoid the matching of above lines. I thought the best is to NOT ALLOW A DOT [^.] BEFORE AND AFTER MY PATTERN:
'[^.](([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|2[0-5]{2})\.){3,}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|2[0-5]{2})[^.]'
BUT THIS IS SIMPLY NOT WORKING
! It is still showing above example lines
I'm using nawk and egrep on Solaris 9.
Many, many thanks in advance for any hint on my problem.
Since hours (even days :-)) I'm trying to find the correct pattern to search for IP addesses in text files.
The pattern to find a IP address itself is not too difficult:
'(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|2[0-5]{2})\.){3,}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|2[0-5]{2})'
BUT, of course the above pattern is also matching lines like
v.55.25.1.7v
1.3.6.1.4.1.897.4.6.1 = dce
394983|12.50.1.0.0|
--> which are not really IP addresses
The big question is now to avoid the matching of above lines. I thought the best is to NOT ALLOW A DOT [^.] BEFORE AND AFTER MY PATTERN:
'[^.](([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|2[0-5]{2})\.){3,}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|2[0-5]{2})[^.]'
BUT THIS IS SIMPLY NOT WORKING
! It is still showing above example linesI'm using nawk and egrep on Solaris 9.
Many, many thanks in advance for any hint on my problem.
|
|
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello
I need to show my MAC-Adress on a Unix System, is there someone that know how? (2 Replies)
Discussion started by: nkochr
2 Replies
2. Solaris
Hello together
how can I find a ipadress from a login into remote system console?
Thanks a lot
Urs (1 Reply)
Discussion started by: MuellerUrs
1 Replies
3. HP-UX
I want change my IP address and hostname in my machine by use the console. Can any one tell me how can I execute that by command ?
Thanks & Regards (1 Reply)
Discussion started by: magasem
1 Replies
4. Shell Programming and Scripting
Couldn't find much help on the kind of question I've here:
There is this text file with text as:
Line one has a bingo
Line two does not have a bingo but it has a tango
Bingo is on line three
Line four has both tango and bingo
Now I would want to search for the pattern "bingo" in this file... (3 Replies)
Discussion started by: manthasirisha
3 Replies
5. UNIX for Dummies Questions & Answers
Good Day,
Im new to scripting especially awk and sed. I just would like to ask help from you guys about a sed command that prints the line immediately after a regexp, but not the line containing the regexp.
sed -n '/regexp/{n;p;}' filename
What if my regexp is 3 word or a sentence. Im... (3 Replies)
Discussion started by: ownins
3 Replies
6. Shell Programming and Scripting
Basically it should identify what ever is in between /*< >*/ (tags) and replace dbname ending with (.) with the words in between the tags
i.e.
DELETE FROM /*<workDB>*/epd_test./*<multi>*//*<version>*/epd_tbl1 ALL; into
DELETE FROM... (4 Replies)
Discussion started by: sol_nov
4 Replies
7. Shell Programming and Scripting
This is probably a real n00b question but i`m not able to figure it out.
I have a folder of configuration files that contain IP-adresses. The line i`m interested in looks like this:
IP_ADDRESS="123.123.123.1123"
Some have muliple ip adresses, so the line will look like :
... (5 Replies)
Discussion started by: DaneV
5 Replies
8. Shell Programming and Scripting
Hi all,
I'm not clear of this regexp command:
regexp {(\S+)\/+$} $String match GetString
From my observation and testing,
if $String is abc/def/gh
$GetString will be abc/def
I don't understand how the /gh in $String got eliminated.
Please help. Thanks (2 Replies)
Discussion started by: mar85
2 Replies
9. Shell Programming and Scripting
How to use regexp to print out repetitive pattern in awk?
$ awk '{print $0, "-\t-\t-\t-\t-\t-\t-\t-\t-\t-\t-\t-"}' output:
- - - - - - - - - - - -I tried following which does not give what I want, of course.
awk '{print $0, "-\t{11}-"}'
output:
- ... (10 Replies)
Discussion started by: yifangt
10 Replies
10. UNIX for Beginners Questions & Answers
Hi
I am writing a TCL script to delete a certain in a file
My Input file
module bist_logic_inst(a, ab , dhd, dhdh , djdj, hdh, djjd, jdj, dhd, dhp, dk
);
input a;
input ab;
input dhd;
input djdj;
input dhd;
output hdh;
output djjd;
output jdj;
output dk; (1 Reply)
Discussion started by: kshitij
1 Replies
LEARN ABOUT NETBSD
zegrep
ZGREP(1) BSD General Commands Manual ZGREP(1) NAME
zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files SYNOPSIS
zgrep [grep-flags] [--] pattern [files ...] zegrep [grep-flags] [--] pattern [file ...] zfgrep [grep-flags] [--] pattern [file ...] DESCRIPTION
zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1). The grep-flags and pattern arguments are passed on to grep(1). If an -e flag is found in the grep-flags, zgrep will not look for a pattern argument. zegrep calls egrep(1), while zfgrep calls fgrep(1). EXIT STATUS
In case of missing arguments or missing pattern, 1 will be returned, otherwise 0. SEE ALSO
egrep(1), fgrep(1), grep(1), gzip(1), zcat(1) AUTHORS
Thomas Klausner <wiz@NetBSD.org> BSD
December 28, 2003 BSD