[TxMt] MultiMarkdown in TextMate

[Mark Eli Kalderon]

Apologies in advance if the answer to my query is blindingly  
obvious---I am a UNIX newbie.

I am trying to implement Fletcher Penney's variant of Markdown,  
MultiMarkdown (http://fletcher.freeshell.org/wiki/MultiMarkdown), as  
a TextMate bundle. The basic idea is to convert a Markdown document  
into a full xhtml document and then to use xslt to convert it into  
different formats such as LaTeX.

I have written TextMate commands for each step of the process, and it  
all works fine, but I would also like to add commands that string  
these steps together. But there is a problem. For example, while the  
following two TextMate commands work:

Save: Nothing
Command(s):	#!/bin/bash
/usr/local/bin/MultiMarkdown.pl "$TM_FILEPATH"
Input:	 None
Output:	 Create New Document

Save: Nothing
Command(s):	#!/bin/bash
/usr/bin/xsltproc -nonet -novalid /usr/local/bin/xhtml2article.xslt  
"$TM_FILEPATH"
Input:	 None
Output:	 Create New Document

the following fails---it generates an empty file:

Save: Nothing
Command(s):	#!/bin/bash
/usr/local/bin/MultiMarkdown.pl "$TM_FILEPATH" | /usr/bin/xsltproc - 
nonet -novalid /usr/local/bin/xhtml2article.xslt
Input:	 None
Output:	 Create New Document

Any ideas? Thanks in advance.

All the best, Mark
_________________
Mark Eli Kalderon
Department of Philosophy
University College London
Gower Street
London WC1E 6BT

Dept webpage: http://www.ucl.ac.uk/philosophy
Personal wepage: http://www.kalderon.demon.co.uk