You really need to provide more details; it's not clear to me what you're asking.
There's no need to install all of the packages from a PPA; simply add the PPA using apt-add-repository
and install the relevant package using apt-get
.
Are you concerned that it depends on other packages from the PPA that you don't want to be installed? Package management was created for a reason, and I don't think going out of your way to not install listed dependencies for a package would be advisable.
Is it that you have installed some other packages form the PPA that you don't want to upgrade? Then that's completely solvable, as long as the desired package is OK with the current versions of the packages you don't want to upgrade. Simply freeze the package as described in this question: How to prevent updating of a specific package?
The Ubuntu Apps and Launchpad websites normally provides downloads for listed PPAs. In case you want Trusty's Project X, this is the link.
apt-get
to fulfill some dependency ofproject-x
? – Yatharth Agarwal Jul 07 '14 at 15:24