If you use aptitude instead of apt* you get most of the features rolled into one command, and it also provides a curses based interface if you prefer that to the command line but are in a situation where a full GUI is not available to you can use an X based tool. I'm not sure about Ubuntu but it has been standard issue in Debian for some time.

I hope one day there's a command line package manager that works with both DPKG and RPM. Something tells me that will expose the real reason people stick with one over the other; remembering the package manager syntax. I feel no great allegiance to one side or the other, there's nothing of real merit I can differentiate them on, the only real result of the split is package maintainers duplicating work.

I have a set of shell scripts which wrap apt, yum, and macports, so i only have to remember one set of commands. They only cover a small fraction of what those tools can do, but they cover 90% of what i do day to day. They were not at all hard to write.

$ apt-get search foo E: Invalid operation search

It's apt-cache search, and it searches full descriptions, not just package names.

My bad - I meant `aptitude search`

Use aptitude.