Hi freesurfer community
 
I installed freesurfer on my mac however after I installed it FSL stopped working.  When i typed in "fsl" in the terminal it says the command is not recognized.
 
This is a bit embarassing but I think my problem is that I am stuck in the freesurfer environment.  I was wondering if someone could tell me how do i get out or close freesurfer. 
 
I've tried ctrl-z, exit, logout and non of those seem to work
 
 
Thank you,
 
-William Sohn