I have some other clues about the problem. I have realized that tar has used an iso-8859-1 encoding and therefore I couldn't see it correctly. But, if I change the encoding in konsole, for example, the names are correctly shown.
I read somewhere that kubuntu uses as standard UTF8. How can I tell tar that I want the files to be in UTF8 encoded? -- problems with character set encodings https://launchpad.net/bugs/74463 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs