Here's a scenario I have a configuration file, say config.txt. which actually gets updated by one of my programs, say update_config.pl. Now, a user can open the file and see the content of the file, config.txt while somebody else is using the update_config.pl program. Now, if the user who had kept the config.txt file opened saves while closing te file, the change made by the update_config.pl is lost. I want to avoind this situation. I hope i've painted the picture of my lake to your liking :)

In reply to Re^4: how can i find whether a file has been opened by some other process across a network(not in a single machine)? by Anonymous Monk
in thread how can i find whether a file has been opened by some other process across a network(not in a single machine)? by jijogroups

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.