Flex

This is how to download and install Flex, a prerequisite for the Flex Mesh Editor

Install flex::

mkdir flex_sdk
cd flex_sdk
wget http://hpfem.org/downloads/flex_sdk_3.5.zip
unzip flex_sdk_3.5.zip
export PATH=$PATH:`pwd`/bin

This PATH export is a temporary solution (valid only in your current terminal session). To make it permanent, you need to add the following line into your .bashrc file::

export PATH=$PATH:/home/pavel/tmp/flex_sdk/bin

Adapt the path to the one you chose for your installation.