-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 apt-file should do what you want. apt-get install apt-file apt-file update apt-file search /usr/bin/nice This assumes, of cource, that you know where nice is located. If not: apt-file search nice should do the trick for you. That will tell you where it is and what package it is part of. Lorenzo -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) iD8DBQFCQeliG9IpekrhBfIRAiZCAJ9VrPIR6LAY28Vk2G1TjafQrWYv0ACfXbwy 2TVJf5tcOQDjPi+MBH9ChII= =g7oB -----END PGP SIGNATURE-----