External Email - Use Caution        

Dear experts,
Thank u very much for all the help so far
I have   mint19 on my system and I have installed FreeSurfer on it.
when I run a command like "mri_convert" it is ok.
But when I run "recon-all" and some other commands, I see the error below : 
 
  bash: /usr/local/freesurfer/bin/recon-all: /bin/tcsh: bad interpreter: No such file or directory

by the way my default setup file is .bashrc.
I really dunno what the problem is.I would be grateful if u could help me.
Cheers,
Maedeh