0 down vote favorite I have problem with my code cose of this part: 
foreach my $line(keys %results){

print Dump($post) if $results{$line} == 1;
}

[download]
I need it to be only one time printed 'print Dump($post)' Here is all that part 
my $f1 = "/home/hellena/Desktop/data.txt";
my $f2 = "/home/hellena/Desktop/ini.txt";


my %results = (); 
open FILE1, "$f1" or die "Could not open file: $! \n";

while(my $line = <FILE1>){$results{$line}=1;
}
close(FILE1); 


open FILE2, "$f2" or die "Could not open file: $! \n";
while(my $line =<FILE2>) {  
$results{$line}++;
}
close(FILE2);  

foreach my $line(keys %results){

print Dump($post) if $results{$line} == 1;

}

[download]

In reply to How to add each line into single line in txt file PERL? by Hellena

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.