https://kr.mathworks.com/matlabcentral/answers/465800-cannot-write-to-preference-file-matlab-prf Cannot write to preference file "matlab.prf" - MATLAB Answers - MATLAB Central kr.mathworks.com 아래 명령어를 터미널에 입력해준다. $ sudo chown -R $USER /home/$USER/.matlab/R2018b/