Dropbox headless installation script

dropbox_inst.sh

#!/bin/bash
# Dropbox installation script by Daniil Gentili.

if [ -f ~/.dropbox-dist/dropboxd ]; then echo "Dropbox already installed."; else
 echo "Installing Dropbox..."
 platform=`uname -m | tr '[A-Z]' '[a-z]'`
 case $platform in
  "x86_64")
      DROPBOXURL="http://www.dropbox.com/download?plat=lnx.x86_64"
      ;;
  *)
      DROPBOXURL="http://www.dropbox.com/download?plat=lnx.x86"
      ;;
 esac
 cd ~ && wget -O - $DROPBOXURL | tar xzf - && ~/.dropbox-dist/dropboxd && sudo wget -O /usr/bin/dropbox.py https://www.dropbox.com/download?dl=packages/dropbox.py && echo "Dropbox installed successfully." || echo "Couldn't install Dropbox."
fi