[[DownloadAndInstall|top]] | [[Installation|previous]] | [[TestingFreeSurfer|next]]

= FreeSurfer Linux Installation =

== Installing contents ==

Installing freesurfer involves simply extracting the contents of the .tar.gz file (will extract to a directory called 'freesurfer'). Installing into the directory {{{/usr/local}}} is recommended. For example:

{{{
$> tar -C /usr/local -xzvf freesurfer-Linux-<platform>-<release>-full.tar.gz
}}}
Again, replacing <platform>-<release> with your Linux variant.


== Setup and Configuration ==
Type the following command into a terminal window to setup and source the !FreeSurfer environment.  Note that you must choose the directory where you extracted freesurfer to become your FREESURFER_HOME ({{{/usr/local/freesurfer}}} in our example):
{{{
bash
$> export FREESURFER_HOME=/usr/local/freesurfer
$> source $FREESURFER_HOME/SetUpFreeSurfer.sh

(t)csh
$> setenv FREESURFER_HOME /usr/local/freesurfer
$> source $FREESURFER_HOME/SetUpFreeSurfer.csh
}}}

Reminder to NMR Center users! [[InternalFreeSurferDistributions|You already have FreeSurfer installed on your system!]]

== Freesurfer license file ==

A license file is required to enable the tools.  One can be
obtained for free by registering at:

https://surfer.nmr.mgh.harvard.edu/registration.html

Upon receiving the license information by email, copy the three
lines of the license information to a file named license.txt and copy that file to your $FREESURFER_HOME.


------
If you came from the Quick Install page, return to that [[QuickInstall|here]].<<BR>>