I am trying to tail a file. I used the example from perlfaq5 and it works just fine if I tail a file in my /tmp/ dir. However if I move that same file to any other dir, the script just reads to the end of the file. If I write a little more to that file, then save, the script will not output it. I am assuming this is because eof cannot be reset for some reason. Any ideas?? I think this should be reproducible. 
open (GWFILE, "/tmp/logfile");
#open (GWFILE, "/opt/logfile");

for (;;) {
  my $curpos;
  for ($curpos = tell(GWFILE); <GWFILE>; $curpos = tell(GWFILE)) {
      print;
  }
  # sleep for a while
  sleep 1;
  seek(GWFILE, $curpos, 0);  # seek to where we had been
}

[download]

In reply to Tailing a log file using seek/tell by atistler

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.