juha@juha-R530-R730:~ > aptitude show flasher-3.5
E: Unable to locate package flasher-3.5
juha@juha-R530-R730:~ > aptitude show libusb-0.1-4
Package: libusb-0.1-4
State: installed
Automatically installed: no
Multi-Arch: same
Version: 2:0.1.12-23.3ubuntu1
Priority: important
Section: libs
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Architecture: amd64
Uncompressed Size: 74,8 k
Depends: libc6 (>= 2.15)
PreDepends: multiarch-support
Conflicts: libccid (< 0.9.2-3), libccid (< 0.9.2-3), libusb0, libusb0
Breaks: libusb-0.1-4 (!= 2:0.1.12-23.3ubuntu1)
Replaces: libusb0, libusb0, libusb-0.1-4 (< 2:0.1.12-23.3ubuntu1)
Description: userspace USB programming library
Library for programming USB applications without the knowledge of Linux kernel internals.
Homepage: http://www.linux-usb.org/

juha@juha-R530-R730:~ >