Pydf and Ncdu - better du and df tools for disk usage analysis

For reference purposes mainly. pydf is not installed by default on ubuntu but provides immediate 'graphical' and humman readable command line disk usage without having to plug in a bunch of switches into the df command. Install with the sudo apt-get install pydf command.
The 'equivalent' for the du command (similar to df, but shows usage of a certain folder) is ncdu. Again, this can be installed by simply calling sudo apt-get install ncdu.

Source

• http://www.tecmint.com/pyd-command-to-check-disk-usage/

• http://www.tecmint.com/ncdu-a-ncurses-based-disk-usage-analyzer-and-tracker/