open FILE1,"out.prod" or die "Cannot open file $!"; @rec=<FILE1>; %save=(); foreach $x (@rec) { if ( $x =~ /2005/ ) { chomp($first=$x); $save{$first}=undef; } if ( $x =~ /time/ ) { chomp($lat= $x); $lat =~ s/.*?time=(\d+)\.\sms$/$1/; if( $lat > "10" ) { $save{$first}=$lat; #print "Hash value is $save{$first}\n"; } } } foreach $first (sort keys %save) { if ($save{$first}) { print "hash value is $save{$first} ms.\n"; } }
If $x !~ /2005/ you have no $first.... thus $first is undef, meaning during the loop it prints out fine, but inside the hash, you're overwriting the same key everytime.

Also, why not just chomp $x at the start and get it over with there instead of chomping twice?

In reply to Re: Lost hash values by Transient
in thread Lost hash values by stephen_isa

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.