Ubuntu 12.04: Font Install/Uninstall

Install with Terminal

1. Make .font directory in your home directory

    $ mkdir .font

2. Download and put font file or files in the .font directory (e.g. Monaco_Linux.ttff)

    $ mv Downloads/Monaco_Linux.ttf.font

3. Register the font

    $ sudo fc-cache -f -v

3. Confirm the install

    $ fc-list | grep Monaco

Install with GUI

http://howtoubuntu.org/how-to-install-fonts-in-ubuntu/

Uninstall

1. Delete font file (e.g. Monaco.Linux.ttf)

    $ rm Monaco_Linux.ttf

2. Unregister the font

    $sudo fc-cache -f -v

3. Confirm the uninstall

    $ fc-list | grep Monaco

It's better not to install custom fonts to "/usr/share/fonts".