A simple example would be printing information to the screen, and updating it every 5 seconds. I've seen other users emulated this by clearing the console and re-printing the information.
Yes, Perl can do that, you just have to open a pipe to 'more' or 'less' for output. I think that this will be helpful albeit tedious to work thru.. A Good "less" Man Page.

It is also possible to use Tk or other Graphical application libraries to get even finer control.

Basically, you are on the right track. If it is possible to do it in 'C', it is possible to do it in Perl. But for this application, I suspect that a scrollable GUI window with text lines will be easier to implement than fiddling around with "less" or "more" screen oriented command characters.


In reply to Re: Interactive "Less Screen" Possible? by Marshall
in thread Interactive "Less Screen" Possible? by bigbot

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.