On Dec 19, 2007 2:05 PM, Tom Phoenix <[EMAIL PROTECTED]> wrote:
> On 12/19/07, Chas. Owens <[EMAIL PROTECTED]> wrote:
>
> > On Dec 19, 2007 2:29 AM, Ravindra Ugaji <[EMAIL PROTECTED]> wrote:
>
> > > chdir ( '/opt/application') || die ("Can't change directory: $!\n");
> > > tried this also
> > > chdir "/opt/application" || die "Can't change directory: $!\n";
>
> > In addition to what others have already said, never do the second*.
> > The || operator has a higher precedence than function calls, so
> >
> > func "string" || die "oops";
> >
> > is really saying
> >
> > func("string" || die("oops"));
> >
> > Since "string" is truthy, the die will never occur.
>
> You have the right idea about functions in general; but chdir() is a
> "named unary operator", so it has higher precedence than the ||
> operator:
>
> chdir "/any/wrong/path" || die "This will indeed die: $!";
>
> That means that the OP's code isn't so wrong as it may seem, even
> though there's surely a better way to write it.
snip
That is the reason I used func instead of chdir. The "don't use || in
that way, use or instead" is more of a general warning not to use the
construct (because it will bite you).
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