in reply to Re: Trying to find and copy mp3s
in thread Trying to find and copy mp3s

This is the second time in recent days that I have seen use warnings suggested to someone whose code already included #!/usr/bin/perl -w. I have long been under the impression that the -w switch is equivalent to use warnings. (man perlrun states that -w "prints warnings about dubious constructs" and "really just enables the internal $^W variable", but does not explictly describe its relation to use warnings.)

Is there an actual, functional difference between the two? If not, why the suggestion that both should be used?

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Re^3: Trying to find and copy mp3s
by davorg (Chancellor) on Feb 12, 2007 at 16:17 UTC
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Re^3: Trying to find and copy mp3s
by kyle (Abbot) on Feb 12, 2007 at 15:53 UTC

    I don't know of any functional difference. I just didn't notice the -w in the OP. In my own code, I always have both: 

    use strict;
use warnings;

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    ...just like that at the top of every file. It's such a strong habit that when I see just one of them, I think the other is missing.

    Anyway, my mistake. Thanks for pointing it out.

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      OK, fair enough. I just wanted to be sure there wasn't some difference I was missing by habitually using only -w.
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Re^3: Trying to find and copy mp3s
by MidLifeXis (Monsignor) on Feb 12, 2007 at 18:48 UTC
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