If you're really committed to the regexp, this works: 

my $u = 'http://adserver.adtech.de/?addyn|2.0|323|91793|1|277|target=_
+blank';
print "$u\n";
$u =~ s/(.*\|.*\|.*\|.*\|.*\|).*(\|.*)/${1}976$2/;
print "$u\n";
__END__
http://adserver.adtech.de/?addyn|2.0|323|91793|1|277|target=_blank
http://adserver.adtech.de/?addyn|2.0|323|91793|1|976|target=_blank

[download]

You might also try using split and join: 

my $u = 'http://adserver.adtech.de/?addyn|2.0|323|91793|1|277|target=_
+blank';
print "$u\n";

my @fields = split /\|/, $u;
$fields[5] = 976;
$u = join '|', @fields;

print "$u\n";
__END__
http://adserver.adtech.de/?addyn|2.0|323|91793|1|277|target=_blank
http://adserver.adtech.de/?addyn|2.0|323|91793|1|976|target=_blank

[download]

I also think it would be good to have a more specific expression. For example, instead of ".*", use "\d+" to make sure it's not an empty field and to make sure that it really does have digits and not some other junk you weren't expecting.

In reply to Re: Replace part of a regex match by kyle
in thread Replace part of a regex match by krisravn

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