I mention I do not want to create temporary file because what I am dealing with is a text (one of the elements in XML).
For example say I have an XML file "Filters.xml". 
<filterobj>
   <filter name="abc"/>
   <filter name="cde"/>
</filterobj>

[download]
My requirement is to read this XML and do the following.
Convert 'abc' into 'abc.processID.TimeStamp' Convert 'cde' into 'cde.ProcessID.TimeStamp'
Update the above XML file and Update another XML file which is referring to 'abc' and 'cde'.

So there is no temp file concept. I have to create unique names to use in the same file.

The problem now is I am using timestamp in seconds and there could be more than one name generated in the same second with same user provided name. So I asked for some input in creating better unique names and I asked Perl monger's comments on using milli seconds.
Thanks

In reply to Re^2: Time in Milliseconds or NanoSeconds by ramya2005
in thread Time in Milliseconds or NanoSeconds by ramya2005

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.