As a concrete example I want to be able to take a particular tool that isn't installed (say nslookup) and be able to tell which package I need to install when the following fails:
apt-get install nslookup
E: Unable to locate package nslookup
Obviously I can google to find the answer for a specific package (dnsutils) but I want to know how to find it myself.
Best Answer
There are two ways I know of to do this:
and...