Hi Jet Speed, On Tue, 13 Nov 2012 11:44:26 +0000 jet speed <speedj...@googlemail.com> wrote:
> Hi All, > > I have a file with similar data, around 10,000 entries with similar format. > > i need to extract the output in below format. I can match the WWN and push > into an arrray, however i am not sure how to reference the WWN to its > corresponding device displayDevNum as in the below format. > Any help would be much appreciated. > You can keep the displayDevNum in a variable global to the loop. Like this: #!/usr/bin/perl use strict; use warnings; my $last_dev_num; while (my $line = <>) { chomp($line); if (my ($dev_num) = $line =~ /\AdisplayDevNum=(.*)\z/) { $last_dev_num = $dev_num; } elsif (my ($wwn) = $line =~ /\AWWN=(.*)\z/) { print "$last_dev_num $wwn\n"; } } Regards, Shlomi Fish > I am using test data here due to system restrictions. > > > required output > ------------------------ > 10:79 10.00.00.00.00.C0.43.33.AB > 10:79 10.00.00.00.00.C0.43.33.A2 > 10:99 10.00.00.00.00.C0.22.33.56 > 10:99 10.00.00.00.00.C0.34.33.A0 > 10:99 10.00.00.00.00.C0.22:49:33 > 10.55 10.00.00.00.00.C9.43.42.B6 > 10.55 10.00.00.00.00.C0.43.23.C9 > > DATA - file.txt > -------------------- > devNum=4,177 > displayDevNum=10:79 > LUN=121 > WWN=10.00.00.00.00.C0.43.33.AB > nickname=a5 > WWN=10.00.00.00.00.C0.43.33.A2 > nickname=wacke22 > devNum=4,177 > displayDevNum=10:99 > LUN=121 > WWN=10.00.00.00.00.C0.22.33.56 > nickname=a2 > WWN=10.00.00.00.00.C0.34.33.A0 > nickname=ajx > WWN=10.00.00.00.00.C0.22:49:33 > nickname=yah1 > devNum=4,177 > displayDevNum=10:55 > LUN=121 > WWN=10.00.00.00.00.C9.43.42.B6 > nickname=a52 > WWN=10.00.00.00.00.C0.43.23.C9 > nickname=wack1 > > > Thanks > Sj -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ Interview with Ben Collins-Sussman - http://shlom.in/sussman Chuck Norris is not afraid of superstitions. Superstitions are afraid of Chuck Norris. (via Dov Levenglick) Please reply to list if it's a mailing list post - http://shlom.in/reply . -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/