From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Schulte <eric.schulte@gmx.com>
Subject: Re: Blank first line in a tangled file prevents src block execution
Date: Sun, 11 Mar 2012 22:40:11 -0600
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To: nicholas.dokos@hp.com
Cc: Emacs orgmode <emacs-orgmode@gnu.org>

Nick Dokos <nicholas.dokos@hp.com> writes:

> Eric Schulte <eric.schulte@gmx.com> wrote:
>
>> Or try
>> 
>> #+begin_src sh :tangle code/get_wavs.sh :shebang #!/bin/bash
>>   for fn_in in "$@"; do
>>       fn_out=$(sed -e 's|\.3gp$||g' -e 's|$|.wav|g' <<< $fn_in)
>>       ffmpeg -i $fn_in -vn -f wav -acodec pcm_u8 $fn_out
>>   done
>> #+end_src
>> 
>
> That reminds me: I believe shebang is used in tangling, but not in evaluation.
> Assuming that's correct, is there any fundamental reason for it not being used
> in evaluation?
>

Shell code blocks are evaluated using the org-babel-sh-command variable.
When the executing command is explicitly provided there is no need for a
shebang line, and it would be (to my knowledge) ignored.

Best,

-- 
Eric Schulte
http://cs.unm.edu/~eschulte/