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Date: Fri, 27 Jun 2008 14:04:15 +0200
From: "Florin Barbalau" <florin DOT barbalau AT gmail DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: sourcing a perl script on cygwin
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Hello Brian,

thanks for the explication. so I should understand that I can never
run a perl script like this in order to set environment variables for
the calling one ?

I am very surprised about this problem because this is in the
installation of an Oracle patch.

many thanks,
Florin

On 6/27/08, Brian Dessent <brian AT dessent DOT net> wrote:
> Florin Barbalau wrote:
>
>  > then If i run:
>  > $ /cygdrive/d/cdb_10_2/content/bin/system/ifssetenv.pl
>  > it works ok.
>  >
>  > but if I try to source as in the calling script (install_cdaa.sh) I
>  > get error messages. :
>  > $ . /cygdrive/d/cdb_10_2/content/bin/system/ifssetenv.pl
>  >  bash: use: command not found
>  > bash: use: command not found
>  > bash: /cygdrive/d/cdb_10_2/content/bin/system/ifssetenv.pl: line 31:
>  > syntax erro
>  > r near unexpected token `$^O'
>  > bash: /cygdrive/d/cdb_10_2/content/bin/system/ifssetenv.pl: line 31:
>  >  `if (lc($^O
>  > ) eq "mswin32")'
>  >
>  > do you have any ideea why?
>
>
> You have a misunderstanding of what sourcing means.  When you tell the
>  shell to source a file it expects to read shell commands from that
>  file.  It doesn't expect to find foreign commands in another language
>  like perl, and it doesn't honor the shebang since that is just a comment
>  in shell syntax.  When you run a script, as opposed to sourcing it, the
>  OS (in this case Cygwin) reads the shebang line (#!/bin/perl) to know
>  what program to use to interpret the script, which is why that works.
>
>  Brian
>
>
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