Manual Installation
Use the installer to download the appropriate package for your platform:
python fslinstaller.py -o
This will download the FSL archive fsl-X.Y.Z-platform.tar.gz, this can be installed into the folder installfolder as follows:
tar -C ''installfolder'' fsl-X.Y.Z-plaform.tar.gz FSLDIR=''installfolder'' $FSLDIR/etc/fslconf/post_install.sh -f $FSLDIR
Now setup your environment.