[NTG-context] Create a directory using tex

Aditya Mahajan adityam at umich.edu
Wed Aug 30 03:09:22 CEST 2006

On Tue, 29 Aug 2006, Taco Hoekwater wrote:

> Aditya Mahajan wrote:
>> Hi,
>>   I want to create a macro that writes files in a sub directory.
>> If the directory is already created, things work fine. However, if the
>> directory is not there, tex complains
>> ! I can't write on file ....
>> Please type another output file name:
>>   Is there a way I can ask tex to create a directory if one does not
>> exist?
> Not with TeX, but you can use \write18 or \installprogram  to run a
> system command.

Can I ask TeX to check if a directory exists or is writable. I want it 
to give an informative message if the directory does not exist.

Or is there a way to check if a file is writable, so that I can do

create directory 'dir' \endinput}


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