[Textures] \write18

Emilio Faro efaro at dma.uvigo.es
Wed Jan 30 17:37:24 EST 2013

Thank you very much, Bruno.

Emilio Faro

On 30/01/2013, at 23:13, Bruno Voisin wrote:

> . Le 30 janv. 2013 à 19:16, Emilio Faro <efaro at dma.uvigo.es> a écrit :
>> The following file:
>> ------------------------------------
>> \documentclass{article}
>> \begin{document}
>> \immediate\write18{echo `pwd` > pwd.txt}
>> \end{document}
>> ------------------------------------
>> does the expected thing in TeXShop but not in Textures. It seems \write18 is not enabled in Textures. Does anybody know whether it is possible to enable it and how?
> No, I don't think Textures has ever allowed that kind of thing. Textures predates OS X and has never been fully updated to support it; hence no ability to link to Unix commands such as 'echo' through \write18.
> If the above works with TeXShop, this means your version is not up-to-date: shell escape (ie \write18) is now considered a security risk in TeX and disabled by default. You should accordingly remove --shell-escape from the tex command options in
> Preferences > Engine > pdfTeX > Tex
> Preferences > Engine > pdfTeX > Latex
> Preferences > Engine > TeX + dvips + distiller > Tex
> Preferences > Engine > TeX + dvips + distiller > Latex
> for example by pressing the Default button for each.
> The preferred way of proceeding now, if you absolutely trust a command and also absolutely need it, is to create a file /Library/TeX/Local/web2c/texmf.cnf, duplicate there the default shell_escape_commands list from /Library/TeX/Root/texmf/web2c/texmf.cnf and add the command you want to it, making it in your case
> shell_escape_commands = \
> bibtex,bibtex8,\
> kpsewhich,\
> makeindex,\
> mpost,\
> repstopdf,\
> echo,\
> That said, unless the Blue Sky TeX Systems web site resuscitates mysteriously within the next few days, it seems Textures is dead for good now and better left alone.
> Bruno Voisin

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