7.6. DPKG Queries example "-p"
Using the LFCS Ubuntu 16-04 image when I execute the example "dpkg -p wget" I get:
student@ubuntu:~$ dpkg -p wget dpkg-query: package 'wget' is not available Use dpkg --info (= dpkg-deb --info) to examine archive files, and dpkg --contents (= dpkg-deb --contents) to list their contents.
using "apt-cache show wget" I get the expected result.
Checking in my own installations it looks like there is a difference between 14.04 and 16.04.
-p, --print-avail package-name... Display details about package-name, as found in /var/lib/dpkg/available. Users of APT-based frontends should use apt-cache show package-name instead.
So I can see what is going on, but don't understand it or understand why it is so. Can anyone clarify this for me, please?
Finally, a suggestion to admin to consider this discrepancy and adjust the course material accordingly.
PS. "dpkg -V wget_1.17.1-1ubuntu1_amd64.deb " also fail, I assume for the same reason.