How to install CalculiX binaries cgx and ccx for Ubuntu 15.04

Install CalculiX binaries cgx and ccx for Ubuntu 15.04 (Incomplete)

 
uncompress files
bunzip2 cgx_2.8.bz2
move file
sudo mv cgx_2.8  /usr/local/bin/cgx
change permission

chmod ao+rx /usr/local/bin/cgx

Here I need to add modified steps from these two links.


Helpful links where I got my info.
http://www.dhondt.de/ccx_2.8.README.INSTALL
http://www.libremechanics.com/?q=node/9

https://launchpad.net/~freecad-maintainers/+archive/ubuntu/freecad-daily