Install a New font in Ubuntu

For instance, I want to install a new font "Crisp" to my Ubuntu 9.10:

1. Create a new directory for your new font:

sudo mkdir /usr/share/fonts/truetype/crisp/

sudo cp ~/download/Crisp.ttf /usr/share/fonts/truetype/crisp/

2. Rebuild the font information files:

sudo fc-cache -f -v | grep -i crisp

-> /usr/share/fonts/truetype/crisp: caching, new cache contents: 1 fonts, 0 dirs

3. Restart the programs in which you want to use the new font.

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Ref:

Fonts - Ubuntu Wiki

Crisp font (proggy programming)