use warnings;
use strict;

[download]
When you do, you get:
$ ./gash.pl &
[1] 7317
$ kill -HUP 7317
SIGHUP handler "ignore" not defined.

[download]


A lack of CHLD handling can cause zombies, but HUP is generated when the parent dies. This will kill the child unless HUP handling is done, in which case the orphan gets adopted by init (PID 1). For more on SIGCHLD see perlipc and your local manpages man 7 signal.

In reply to Re: Is 'ignore' the same as 'IGNORE' for %SIG? by cdarke
in thread Is 'ignore' the same as 'IGNORE' for %SIG? by Plankton

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.