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Subject: Re: behaviour of "for (( exp1; exp2; exp3 )); do COMMANDS; done"
References: <002901c32427$2e1553e0$78d96f83 AT pomello>
	<PHENJGDFMJPEBOBLGEMOKENMCBAA DOT peter DOT oosterlynck AT oracle DOT com>
	<ocj6dvc16hc7e702hhe1dktohpm1306oi6 AT 4ax DOT com>
	<20030527120718 DOT GA22030 AT convex DOT org DOT uk>
	<eq29dvgfdunpptfj4ak084g2lfa22as6m1 AT 4ax DOT com>
	<m3brxn1f9w DOT fsf AT ate DOT maierh>
	<77h9dvo3rjbopg45hi1ec65igvfv6i2lkg AT 4ax DOT com>
From: Harald DOT Maier DOT BW AT t-online DOT de (Harald Maier)
Reply-To: Harald Maier <maierh AT myself DOT com>
Date: Thu, 29 May 2003 11:32:23 +0200
In-Reply-To: <77h9dvo3rjbopg45hi1ec65igvfv6i2lkg@4ax.com> (Sam Edge's
 message of "Wed, 28 May 2003 15:22:36 +0100")
Message-ID: <m3fzmyayjc.fsf@ate.maierh>
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Sam Edge <sam DOT edgeZZZ AT lineone DOT net> writes:

> Harald Maier <maierh AT myself DOT com> wrote:
>
>> > (OT) Does anyone know if any of the common shells, when they see
>> > "#!/bin/xxxx" at the front of a script, try a $PATH search for an
>> > "xxxx" executable if they can't find "/bin/xxxx"? This would seem like
>> > a good idea to me.
>> Some people are using the env program to use the PATH environment:
>> #! /usr/bin/env perl
>> BEGIN { $^W = 1 }
>
> Erm ... doesn't this just duplicate the problem? How can you guarantee
> that "env" is always in /usr/bin?
>
> It's also pretty inefficient, isn't it?

It gives you the freedom to start different interpreters with the same
script. E.g. perl-5.6 or perl-5.8. This might be interesting for
testing purposes. What are you looking for?

Harald


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