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Configuring FSL with environment variables

Below is a list of all of the recognised FSL settings which you can change in your fsl.sh (or fsl.csh) file, along with their meaning.

Variable name

Default

Possible values

Purpose

FSLDIR

N/A

-

Points to the folder you installed FSL into, for example /usr/local/fsl

FSLOUTPUTTYPE

NIFTI_GZ

NIFTY_GZ

Output results as a single gzip compressed NIFTI format file

NIFTI

Output as a single NIFTI format file

NIFTI_PAIR_GZ

Output as gzip compressed NIFTI header/image pair

NIFTY_PAIR

Output as NIFTI header/image pair

ANALYZE_GZ

Output as gzip compressed ANALYZE header/image pair

ANALYZE

Output as ANALYZE header/image pair

FSLMULTIFILEQUIT

TRUE

TRUE

If a tool encounters multiple files sharing a basename (eg epi.hdr and epi.nii) it will quit with an error

FALSE

Try to continue if you find multiple files (undefined results!)

FSLTCLSH

$FSLDIR/bin/fsltclsh

-

Path to the location of the TCL interpreter you wish to use, defaults to the FSL provided copy

FSLWISH

$FSLDIR/bin/fslwish

-

Path to the location of the TCL/TK interpreter you wish to use, defaults to the FSL provided copy

FSLCONFDIR

$FSLDIR/config

-

Path to the location of the configuration files used to compile FSL - only necessary for compiling the source code

FSLMACHTYPE

`$FSLDIR/etc/fslconf/fslmachtype.sh`

-

Defines the machine/OS we are running on - the fslmachtype.sh script outputs a value suitable for your computer - only necessary for compiling the source code

FSLDEVDIR

N/A

-

Defines the location you are building FSL into when compiling the source code. This has to be set if you want to build a single project without running the full compilation script


2014-07-08 15:33