Solved

Text file word search

Posted on 2004-10-02
2
223 Views
Last Modified: 2012-06-27
I have a text file called cool.txt:

lovelovelove.com  Cool1
painpainpain.com  Cool2
expertexpert.com  Cool2

I want this: perl script.pl cool.txt cool1 cool1.txt

the script search the world cool1 in the file cool.txt and creat a file called cool1.txt and past the site(only the site).

cool1.txt:
lovelovelove.com


tnx.
0
Comment
Question by:cels9
[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
2 Comments
 
LVL 10

Accepted Solution

by:
rj2 earned 500 total points
ID: 12208612
if(scalar(@ARGV) < 2) {
      print "Usage: perl script.pl searchfile searchtext outfile\n";
      exit;
}
open(INFILE,$ARGV[0]) || die("Can not open infile $ARGV[0] because $!");
open(OUTFILE,">$ARGV[2]") || die("Can not open outfile $ARGV[2] because $!");
$text=$ARGV[1];
while(<INFILE>) {
      #assumes case insenstive search, remove trailing i if not
      #also assumes that matching only part of the final string is ok. Add $ before /i if not
      if(m/(^[^\s]+)\s+$text/i) {                                                                                                  
            print OUTFILE $1,"\n";
      }
}
close(INFILE);
close(OUTFILE);
0
 
LVL 84

Expert Comment

by:ozo
ID: 12210224
/[^\s]/ can also be written /\S/
You might also want to be aware of possible metacharacters in $text
0

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

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

Many time we need to work with multiple files all together. If its windows system then we can use some GUI based editor to accomplish our task. But what if you are on putty or have only CLI(Command Line Interface) as an option to  edit your files. I…
Email validation in proper way is  very important validation required in any web pages. This code is self explainable except that Regular Expression which I used for pattern matching. I originally published as a thread on my website : http://www…
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

691 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