For a brand new process, you should get 0, 1 and 2 assigned to standard input, standard output and standard error resp. (I know you *already* know this, but bear with me).
It's the shell that's responsible setting stdin, -out, and -err up. I know you can have more open when perl starts up if you explicitly request it (e.g. $ perl prog 3> extra-output). I assume there aren't any at-all-POSIX-y shells that open more fd's by default. Anyone know if that's true?
So, if you really want to start from 4 instead of 3 (I wonder why, but I'm sure you have a good reason)
I wanted to leave STDERR as fd 2, but I figured it'd be easier to remember that even-numbered fd's were input and odd-numbered fd's were output.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
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).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|