dotfile.sh allows you to sync all your '.files' using Dropbox

dotfile.sh

#!/bin/sh

REPO=$HOME/Dropbox/Dotfiles
PLATFORM=$(uname)

die() {
  echo "fatal: $1"
  exit 1
}

dotfile_add() {
  source="$1"
  base=${source#.}
  dest="$REPO/$base"

  test -e "$source" || die "no such dotfile"
  test -e "$dest"   && die "target dotfile already exists"

  mv -v "$source" "$dest" || die "move failed"
  ln -s "$dest" "$source" || die "link failed"
}

dotfile_linkall() {
  for dotfile in $REPO/* ; do
    base=$(basename "$dotfile")
    case $base in
      (*-$PLATFORM)
        dest="$HOME/.${base%-$PLATFORM}"
        ;;
      (*-Darwin|*-Linux)
        dest=nil
        ;;
      (*)
        dest="$HOME/.$base" 
        ;;
    esac
    test "$dest" != nil || continue
    ln -sf "$dotfile" "$dest"
  done
}


case $1 in
  add|linkall)
    dotfile_$1 "$2"
    ;;
  *)  die "bad option '$1'."
    ;;
esac

exit 0