I like your response a lot, because it makes perfect sense. So, in my case, I want to execute a separate script in the child process (which is the system call in the code posted). My while loop continuously grabs commands from a mysql database. In the event that a stop command is encountered, my loop will kill the child process, stopping the script that was started with a 'start' command. I agree you that a system command may be unnecessary in this case. But, with an exec call, I don't think it returns a child ID, so how would I keep track of the script and end it when the command comes in?

General Question: When I call system, there is an implicit wait call until the child finishes?

An Approach: I think someone mentioned that an array would be useful, to keep track of the child pid's. I am trying that route, because it may work in my case. Thoughts?


In reply to Re^4: Fork() Function by carlriz
in thread Fork() Function by carlriz

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.