# [tex-live] shell_escape extension patch

Zdenek Wagner wagner at cesnet.cz
Tue Jun 13 16:59:15 CEST 2006

```On Mon, 12 Jun 2006, ivo welch wrote:

> thanks, robin.  IMHO, this may have been a simple change for Taco, but
> I predict it will mean a quantum leap for users in the long run.  it
> means nothing less than that end users can now write more complex
> macros in a different way.
>
It makes things platform dependent. You my try to get the list of JPG
files by \exec18{ls *jpg} which will run on unix systems but not on
Windows and OS/2 because ls does not exist (unless TeX is run from some
port of unix shell for such a platform). I see better future for
incorporating LUA because it will be the same everywhere.

Zdenek Wagner
e-mail: wagner at cesnet.cz