[2 days left] What’s wrong with your cloud strategy? Learn why multicloud solutions matter with Nimble Storage.Register Now

x
?
Solved

Removing Unwanted characters from a text file.

Posted on 2013-06-06
1
Medium Priority
?
310 Views
Last Modified: 2013-06-06
I figure this is a simple regex recipe, but I haven't been able to find the right one yet. I have a text file, and I want to remove all instances of 1-2 digits separated by a colon followed by 1-2 digits. So anything that looks like:

1:1
10:10
10:1
1:10
0
Comment
Question by:stakor
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 35

Accepted Solution

by:
Terry Woods earned 2000 total points
ID: 39227579
Something like this? Don't forget to back up your file before testing, though the -i.bak option should make a backup with a .bak extension.

perl -i.bak -pe 's/(?<!\d)\d\d?:\d\d?(?!\d)//g' my_input_file.txt

Open in new window

0

Featured Post

Tech or Treat!

Submit an article about your scariest tech experience—and the solution—and you’ll be automatically entered to win one of 4 fantastic tech gadgets.

Question has a verified solution.

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

I've just discovered very important differences between Windows an Unix formats in Perl,at least 5.xx.. MOST IMPORTANT: Use Unix file format while saving Your script. otherwise it will have ^M s or smth likely weird in the EOL, Then DO NOT use m…
I have been pestered over the years to produce and distribute regular data extracts, and often the request have explicitly requested the data be emailed as an Excel attachement; specifically Excel, as it appears: CSV files confuse (no Red or Green h…
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…
Six Sigma Control Plans

656 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