How are thumbnails created in Knoppix 7.2?

[utu]

.
Where do thumbnails come from in /home/knoppix/.thumbnails/ ?
I have 13M of these, all recognizable, but I don't know how they came to be.
A byproduct of using Image Viewer, or PCManFM on images perhaps?
Who can educate me on this?

[Werner P. Schulz]

Not only PCManFM but also the filemanager Konqueror and Dolphin uses '~/.thumbnails' and the graphical tools like GPicView, GThumb or Gwenview. But Nautilus uses '~/.cache/thumbnails'.

You can delete or rename this folders or their subfolders "large" and "normal" without any risk; they will be recreated the next time whenever a filemanager or a graphical tool creates again thumbnails.

[utu]

they will be recreated the next time whenever a filemanager or a graphical tool creates again thumbnails.

Thanks, Werner.
Is there any way to choose not to save these thumbnails?
Perhaps re-route them to /tmp?

[Werner P. Schulz]

I wouldn't use a symlink to '/tmp/', because '/tmp/' is size limited to 2GB. But why not insert a command within '/etc/init.d/knoppix-halt'

[ -d /home/knoppix/.thumbnails ] && rm -fR /home/knoppix/.thumbnails/

perhaps after the two lines

[ -r /etc/default/locale ] && . /etc/default/locale
[ -r /etc/sysconfig/i18n ] && . /etc/sysconfig/i18ne

[utu]

Right on!
Thanks again, Werner.
Just what I wanted.
Danke.