Solved

Regex to filter only IP's?

Posted on 2016-11-20
4
42 Views
Last Modified: 2016-11-20
How to filter this IP only?

89.35.24.74     7 msmta9.newcombo.net  
89.35.24.83     8 msmta18.newcombo.net
12.35.24.83     8 msjohn123
100.200.30.20  rapasins

Output:

89.35.24.7
89.35.24.83
12.35.24.83
100.200.30.20
0
Comment
Question by:john lambert
4 Comments
 
LVL 49

Expert Comment

by:Rgonzo1971
ID: 41895051
Hi,

pls try
\b([0-9]{1,3}\.){3}[0-9]{1,3}\b

Open in new window

Regards
0
 
LVL 26

Expert Comment

by:skullnobrains
ID: 41895058
you don't need an ereg if you just want the first column

in shell scripting you can do this

while read ip junk ; do echo $ip ; done <INPUT_FILE >OUTPUT_FILE

what is tyour environment ? unix shell ? windows shell ? perl ? asp ?
0
 
LVL 34

Accepted Solution

by:
Dan Craciun earned 500 total points
ID: 41895088
awk "BEGIN { FS=""" """ } { print $1 }" sterge.txt

Open in new window


Result:
89.35.24.74
89.35.24.83
12.35.24.83
100.200.30.20

Open in new window


HTH,
Dan
0
 

Author Closing Comment

by:john lambert
ID: 41895090
thank you!!!ur the best!!
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

by Batuhan Cetin Regular expression is a language that we use to edit a string or retrieve sub-strings that meets specific rules from a text. A regular expression can be applied to a set of string variables. There are many RegEx engines for u…
I have been reconstructing a PHP-based application that has grown into a full blown interface system over the last ten years by a developer that has now gone into business for himself building websites. I am not incredibly fond of writing PHP code o…
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…

919 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now