cd && if [ -d workspace/dotfiles ]; then
  cd workspace/dotfiles
  git fetch
  git pull origin master
else
 mkdir -p workspace
 cd workspace
 git clone [email protected]:tithonium/dotfiles.git
 cd dotfiles
fi && perl install.pl

Set up Dropbox, then

cd ~/Dropbox/Dotfiles && perl install.pl

Use the Linux instructions above.

Occasionally there are conflicts. The installer will not replace a file unless it contains identical content to the replacement. If it is a new system, or one on which you have not done any customization, use

perl install.pl -f

Otherwise, diff the conflicts and figure out what needs to change.