Hi PerlMonks, I'm having trouble writing a script so I've come here seeking assistance. I need to replace part of a line with part of the following line if a requirement is met. Example of file:

<Hit_num>6</Hit_num>
<Hit_id>gnl|BL_ORD_ID|3665984</Hit_id>
<Hit_def>gi|158703516|gb|ABW77886.1| odorant-bin...
<Hit_accession>3665984</Hit_accession>

[download]

I need to replace "gnl|BL_ORD_ID|3665984" that bit in the second line with "gi|158703516|gb|ABW77886.1|" this bit in the third line. My current script is:

#!/usr/bin/perl -w
use strict;
use warnings;

my $file = "$ARGV[0]";

open IN, ">fixed_$file";

open A, $file;

my $replace = ();

while (<A>)     {
        if ($_ =~ /Hit_id/)   {
                next;
                $replace =~ m/gi|.|/;
        }
        $_ =~ s/\>.\</\>$replace\</;
        print IN "$_";
}

close IN;
close A;
exit;

[download]

I don't think next is doing what I want nor do I know if my regular expression are correct. Any help would be appreciated. Thanks

In reply to replace part of a line with part of the following line after if is TRUE by N311V

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