Hello, Thanks so much for your reply. I have just done several tests following your recommandation. Indeed, *"Enable overwrite:* Processing -> Options -> General -> *Overwrite existing files" *seems to work and to be enough for my use case.
Le lun. 12 janv. 2026 à 20:32, [email protected] [email protected] < [email protected]> a écrit : > Hi celati, > > QGIS Modeler doesn’t really have a built-in “clean intermediate outputs on > rerun” option. The usual workarounds are: > > *Enable overwrite:* Processing -> Options -> General -> *Overwrite > existing files*. For many GDAL outputs (like GeoTIFF) this is enough. > > *Delete first, then run:* Add a first step in the model that deletes the > known intermediate files (if you have a delete/remove tool available in > your Processing toolbox - often under GDAL). Since your filenames are > fixed, it’s straightforward. > > If you don’t have any delete tool available in Modeler, the reliable > fallback is running the model from a small script that deletes the > *intermediate* folder contents before launching the model. > > I hope this helps. > > > On 01/12/2026 7:05 PM CET celati Laurent via QGIS-User < > [email protected]> wrote: > > > > > Dear all, > > > > I'm working with QGIS 3.40. > > I've set up a small QGIS modeler with several inputs, algorithms, > intermediate outputs, and a final result (model output). For the > intermediate algorithm outputs, I've defined a "pre-calculated value" with > a relative path. > > Here 's the expression setted : > > @project_home || '/intermediaire' || '/segmentation_raster' || '.tif' > > > > All my intermediate outputs are stored in a folder named "intermediate". > Each output file has a predefined name and extension. > > This works. However, I would like these 'intermediate' files to be > automatically deleted/overwritten each time the modeler is run again > (delete/replace the output files from the previous run). > Could you give me some guidances, provide some ways to do that ? Thanks so > much. > _______________________________________________ > QGIS-User mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > > > [image: FiberQ] > Vladimir Vuković > Author of FiberQ > > [email protected] > fiberq.net > +381 60 426 2012 <+381604262012> >
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