perldoc perlipc
You may also choose to assign the strings 'IGNORE' or 'DEFAULT'
+ as the
handler, in which case Perl will try to discard the signal or d
+o the default
thing.
On most Unix platforms, the "CHLD" (sometimes also known as "CL
+D") signal
has special behavior with respect to a value of 'IGNORE'. Sett
+ing
$SIG{CHLD} to 'IGNORE' on such a platform has the effect of not
+ creating
zombie processes when the parent process fails to "wait()" on i
+ts child
processes (i.e. child processes are automatically reaped). Cal
+ling
"wait()" with $SIG{CHLD} set to 'IGNORE' usually returns "-1" o
+n such platforms.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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are good places to start.
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