Install package from without adding PPA

Is there a way to install a package via a simple URL without having to add a PPA beforehand? Something like apt-get https://url.to.package.deb? Or perhaps some command line options that would add the PPA, update, and install the package all at once? Seems like I've seen other package managers that do this. I just find it a hassle to type the commands to add a whole repository just so I can install only one of its packages.

Solution 1:

If you already know the .deb file link, then download that deb file by,

wget https://url.to.package.deb

If you want to download a package then run,

apt-get download <package-name>

It will download all the .deb files related to the package.Finally install all the .deb files by running,

sudo dpkg -i filename.deb