Visit Our UNIX and Linux User Community


pattern match url in string / PERL


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting pattern match url in string / PERL
# 1  
Old 07-22-2009
pattern match url in string / PERL

Am trying to remove urls from text strings in PERL. I have the following but it does not seem to work:

$remarks =~ s/www\.\s+\.com//gi;



In English, I want to look for www. then I want to delete the www. and everything after it until I hit a space (but not including the space).
It's not even deleting a simple occurrence of Example Web Page


Best way to do this?Any help would be hugely appreciated.

Kind regards.
# 2  
Old 07-23-2009
Hi.

This regular expression seems to work:
Code:
#!/usr/bin/perl

# @(#) p1	Demonstrate pattern of "skip until character".

use warnings;
use strict;

my($debug);
$debug = 0;
$debug = 1;

my($t1, $remarks);

$t1="now www.domain.top will disappear and also www.junk is gone.";
$remarks = $t1;
$remarks =~ s/www[.][^ ]*[ ]/ /g;
print "result is :$remarks:\n";

exit(0);

producing:
Code:
% ./p1
result is :now  will disappear and also  is gone.:

See perl documentation, perldoc perldoc for how to find details ... cheers, drl
# 3  
Old 07-23-2009
You already have several replies to this same question on another forum

Previous Thread | Next Thread
Test Your Knowledge in Computers #23
Difficulty: Easy
One Terabyte (1 TB) is equal to 1000 GB.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

PERL - Use of uninitialized value in pattern match (m//)

I have written a PERL script to read files from directory that the filename contains OT. It then takes each line of each file and prints the first 5 characters before the first occurence of a /. Currently I am getting the error: Use of uninitialized value in string at rowGrab.pl line 43.... (3 Replies)
Discussion started by: chris01010
3 Replies

2. Shell Programming and Scripting

Perl match pattern

Hi all, i have a peice of Perl script like this: foreach (@line) { @tmp = split /;/,$_; #print "Line is: $_\n"; switch($tmp){ case m/p60/i { push @p60, , $tmp ]; ... (7 Replies)
Discussion started by: arrals_vl
7 Replies

3. Shell Programming and Scripting

How to replace with pattern match using Perl

I have to replace a line, if it has a pattern for example Suppose file.out contains: <tr><td class="cB">Hello</td><td class="cB">1245</td><td class="cB">958</td><td class="cRB">1.34</td><td class="cRB">1.36</td></tr> <tr><td class="cB">world</td><td class="cB">3256</td><td... (8 Replies)
Discussion started by: sol_nov
8 Replies

4. Shell Programming and Scripting

pattern match in a string

Hello, Please see below line code: #!/bin/ksh set -x /usr/bin/cat /home/temp |while read line do if ] then echo "matched" else echo "nope" fi done content of filr temp is as below (4 Replies)
Discussion started by: skhichi
4 Replies

5. Shell Programming and Scripting

perl pattern match on xml

using perl Hi All, i was wondering if anyone can solve how to extract the full tag from the xml line ie not sure what to put in the m// to get the string "/data/TOP471//context_data/instruments.txt" I basically want the above filename in a variable for further processing... $_ =" ... (0 Replies)
Discussion started by: satnamx
0 Replies

6. Shell Programming and Scripting

Perl regular expression - To match a Dynamic URL

Hello All, I have a requirement to match a dynamic url and extract each of the directory and page and store it -Only PERL style Regular EXP as it will be used in informatica - REG_EXTRACT function Example Input URLs: 1)... (2 Replies)
Discussion started by: jambesh
2 Replies

7. Shell Programming and Scripting

Perl Pattern Match

Hi Friends, I have a tuff time with regular expressionss. Please let me know how to make this happen as it consumed lots of my time but in vain. Here is the sample text file i need to match for. I need to search for pattern1 removed, if it matches then search for pattern types either SE\ or... (2 Replies)
Discussion started by: nmattam
2 Replies

8. Shell Programming and Scripting

Date Pattern Match (replacement string)

Hello, i am splitting files and sometimes the string of the pattern doesnt exist in the input file it starts for example with 00:00:01. So the output is completely desorganized, is there any way of putting a replacement string in the pattern so it will grab all the times from 00:**:** to first... (0 Replies)
Discussion started by: x-plicit78
0 Replies

9. Shell Programming and Scripting

Match pattern and replace with string

hi guys, insert into /*<new>*/abc_db.tbl_name this is should be replaced to insert into /*<new>*/${new}.tbl_name it should use '.' as delimiter and replace is there any way to do it using sed (6 Replies)
Discussion started by: sol_nov
6 Replies

10. UNIX for Advanced & Expert Users

how can awk match multi pattern in a string

Hi all, I need to category the processes in my system with awk. And for now, there are several command with similar name, so i have to match more than one pattern to pick it out. for instance: binrundb the string1, 2 & 3 may contain word, number, blank or "/". The "bin" should be ahead "rundb"... (5 Replies)
Discussion started by: sleepy_11
5 Replies

Featured Tech Videos