tlmgr viaTeX Live Backports PPA

I just installed TeX Live 2012, --on ubuntu 12.04-- via a this PPA, but cannot seem to figure out how to install tlmgr. I need help installing it.

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Thank you. I vividly remember going through that post, but figured the texlive 2012 backport was an exception. I just figured that perhaps there was something I could have overlooked, especially that I installed texlive-full –  lightonphiri Aug 29 '12 at 18:40