What are the commands to Create a Dir to install the Binaries and create dir for Each coin when i want the directories and the coin block chains to be downloaded and created on and external drive that i am using that has considerable more space than the hard drive that Ubuntu and my mining pool is currently installed to
Currently the commands are
mkdir ~/bin
mkdir ~/.bitcoin
mkdir ~/.namecoin
mkdir ~/.ixcoin
mkdir ~/.devcoin


what changes do i need to make to those commands to have them created on the external drive
Thanks for any help
Daniel