Hi Freesurfer developers,

Sorry if I'm making a simple mistake that I've overlooked. I am currently trying to do the freesurfer tutorials available at http://surfer.nmr.mgh.harvard.edu/fswiki/Tutorials and am having problems with the dcmunpack command on freesurfer. Whenever I try to run the dcmunpack script (whether it's dcmunpack -help or dcmunpack -src . -scanonly scan.log), I get the following error message :

bash: /home/praveen/freesurfer/bin/dcmunpack: /bin/tcsh: bad interpreter: No such file or directory

I have installed freesurfer, added the license and am able to use freeview to open .mgz and .pial files so I'm not sure why dcmunpack is missing. I'm not able to find any online documentation on how to install or source that particular script either. I've searched the list archive and no similar errors have been reported. Please advise and let me know what I should do or what I'm doing wrong.

I am currently running freesurfer on a virtual machine using Oracle Virtualbox 6.1 on my Windows laptop. The OS on the virtual machine I'm using is:

Ubuntu 20.04.1 LTS

and the freesurfer version is:

freesurfer-linux-centos6_x86_64-7.1.1-20200723-8b40551

I am using a Bash shell to run the commands.

Thank you so much for your help! Please let me know if you need any other information.

Sincerely

Praveen V. Raghunathan