Hello and thank you all!
A few answers:
1. yes, I'm running on linux !!
2. this is a reporter file, it gets appended all the time, every minute or so
3. the last line is the most updated(since the report row /line is added every minute), that's why I'm interested in it, and I used to read the first line too since it holds the columns name(I get the data by the column name) BUT
now I found a bug- if a change is made, and a column is added,then a new row is added (similar to the first row holding the names) but this row also holds the name of the new column, BUT it doesn't know about it since it reads the column name from the first row in the file
So, I need to change this and search the file for this row and if it's not found-I'll end up with the first one

It look something like this:
#name: time  input   output   users   connected  ...
      12:23   23      34       780      560
      12:24    21      40       780      570  
....

[download]

In reply to Re^2: Reading from a file by just dave
in thread Reading from a file by just dave

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.