Search packages in debian based distros

You are probably familiar with:

apt-get install <package-name>

command to install new packages to your debian based distro.

You can easily search for a package from command line with the following command:

apt-cache search <package-name>

if you are not completely know package name get little help from grep and pipe (|) combinations. For example if you want to install setup-tools package for python then search can be:

apt-cache search python | grep setup

Then you can install the package.