Not knowing well what I was doing, I opened a tar with sudo, and now it's linked to a user that doesn't exist and I can't remove it under any circumstances - perhaps because it's off the home directory. Help please?
total 44
drwx------ 2 3047 3047 4096 Sep 25 2012 library
drwx------ 2 3047 3047 4096 Sep 25 2012 source
drwx------ 2 3047 3047 4096 Sep 25 2012 examples
-rw-rw-rw- 1 q q 28828 May 6 07:02 image_processing.tar.gz
ls -ltr
and include the output in your question?