Re: [Maxima-discuss] Using Maxima to delete files and directories in a local machine.

[Wolfgang D. <wol...@da...>]

Am 01.03.24 um 18:23 schrieb El Observatorio De Matemática:
> Hi list
> 
> I want to handle a folder with more than 70000 files and 50000 
> directories and delete from it several files and directories using 
> Maxima, if it is possible.
> There is a package in contrib named operatingsystem that potentially can 
> do this task but i can not figure out how to use it.

That package was introduced by me, cause I had to use some filesystem 
operations and there was no package - but I am not a lisp expert.

> (%i3) for i in "C:\Users\Usuario\Documents\Trabajos en 
> wxmaxima\MiscRepo\OldSchool\OtherNibble\RosettaCodeData-main\Task\Sudoku" do

Your 'for' loop is no valid Maxima code. Exec 'describe("for");' for the 
syntax. A valid example - why do you need the for loop? - may be:


(%i30) for i in ["C:\\Users\\Usario"] do display(i);
                               i = C:\Users\Usario

(%o30)                               done

Attention: A single "\" is an escape character, so you must use "\\" 
instead, otherwise it would not be shown:

(%i31) for i in ["C:\Users\Usario"] do display(i);
                                i = C:UsersUsario

(%o31)                               done

Or - as you told - a "/" works instead:

(%i32)  for i in ["C:/Users/Usario"] do display(i);
                               i = C:/Users/Usario

Best regards, Wolfgang

P.S. If you need to delete many directories, using system() with a 
operating specific command - like "rm -r directories" on Linux/Unix or 
"deltree directories" on Windows might be easier.