From: UENO Kazuaki <kazu@...>
Date: 2001-02-23T18:23:42+09:00
Subject: [ruby-list:28187] Re: handling of #!

> From: "Takahiro Kambe" Sent: Thursday, February 22, 2001 10:15 PM
> >   なんか不思議な機能ではあるんですけどねぇ。例えば /bin/sh あたり
に組
> > み込まれてるんなら納得いくんですけど、ENOEXEC でデフォルト Perl を
呼び
> ええ、僕もそう思います。

perldoc perlrun です。

 The #! line is always examined for switches as the line is
 being parsed.  Thus, if you're on a machine that allows
 only one argument with the #! line, or worse, doesn't even
 recognize the #! line, you still can get consistent switch
 behavior regardless of how Perl was invoked, even if -x
 was used to find the beginning of the program.
[snip]
 If the #! line does not contain the word "perl", the
 program named after the #! is executed instead of the Perl
 interpreter.  This is slightly bizarre, but it helps
 people on machines that don't do #!, because they can tell
 a program that their SHELL is /usr/bin/perl, and Perl will
 then dispatch the program to the correct interpreter for
 them.

たいていの場合余計なお世話であるようには思います。