I use LaTeX for nearly all of my document preparation. Letters, reports, you name it. Because I'm always finding new uses for it, I find myself frequently downloading packages from CTAN (the Comprehensive TeX Archive Network).
I find it a hassle to copy a package's URL from my desktop (where I searched
for it) to my netbook (where I want to download it). To solve this problem, I've
written a little shell function that downloads a package for me. If you want to
use it, just stick it in
$HOME/.zshrc if you use zsh,
$HOME/.bashrc if you use bash, etc.
To download, say, the
program package, you'll want to run
Note: You'll need to run
source $HOME/.zshrc or
source $HOME/.bashrc after editing either to be able to use it. Or
you can open a new terminal and use it there.