Dear fellow monks,
I am trying to find out how you can grab the processID of any program that a Perl program can spawn. For example, this code calls gunzip. I want to know the PID of the gunzip process that I generated. I tried using $$, but that doesnt work. Here's my code. Any help will be most appreciated. Cheers! Robert 
#!/usr/bin/perl

$path_current = '/usr01/rzs96/logmining/logs';

print "Firing off process 1\n";

if (fork ())
{
    # RUN PARENT PROCESS
    print "PARENT = $$\n";
}
else
{
    # RUN CHILD PROCESS
    print "CHILD = $$\n";
    close (STDOUT);

        # I need to get the PID from this gunzip process!
    `gunzip -c $path_current/access.webcache*.80.*-1200AM.gz | grep "0
+1225322"  > Xtract-1.PID.log &`;
}

[download]

In reply to How do you find the process ID to any UNIX programs that your Perl program executes? by rzs96

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.