How to install Gmsh 2.5.0 on Ubuntu Lucid 64 bit

If you just type sudo apt-get install gmsh you get an older but packaged version of Gmsh.

To install the version 2.5.0 (64bit) of Gmsh you can do the following:

cd /usr/local
http://dl.dropbox.com/u/2465545/gmsh-2.5.0-Linux.tar.gz | sudo tar -xzvf -

To remove the version above from your computer do:

cd /usr/local
# see which files will be deleted:
wget -O- http://dl.dropbox.com/u/2465545/gmsh-2.5.0-Linux.tar.gz | tar -tzf - 
# or directly delete the contents from /usr/local using this command:
wget -O- http://dl.dropbox.com/u/2465545/gmsh-2.5.0-Linux.tar.gz | tar -tzf - | sudo rm -rf