Automated Changing File Permissions via bash in Matlab

I am having difficulties automating changing file permissions. There are files I'm moving to a remote server that I'm trying to access from my local machine. However, the file permissions need to be changed before I am able to accesss them. The bash script is as follows:

-----------------------------------------

ssh user@hostname

password

cd user/laptops

sudo chmod -R 744 */

password

exit

-----------------------------------------

I tried doing a system call, but MatLab doesn't allow password inputs. How can I make this script possible in Matlab? Thanks!

Answer 1

[Sourabh Kondapaka]

Hi,

You can use the “system()” function in MATLAB to achieve this. The “system()” function takes a string or character array as input which would be your command.

I see that you are trying to a connect to a remote linux host.You can use the following:

Assume password, username and hostname are 3 variables which have the password, username and hostname of the remote host respectively.

[status, cmdout] = system('exit'); 
command = ['sshpass -p ',password,' ssh-o StrictHostKeyChecking=no  ',  username,'@', hostname ' ' '''echo -n''']; 

[status, cmdout] = system(command); 

% 'status' is  0 if the command was successfully executed 
%             ~0 otherwise 
% 'cmdout' is the output of executing the command 
% Close connection once tests are over 

[status, cmdout] = system('exit'); 

A similar question has been answered here.

SSH/SFTP/SCP For Matlab (v2) is one of the several submissions in MATLAB File Exchange on MATLAB Central which is a forum for our product users to interact, exchange information and knowledge, without MathWorks' involvement. Feel free to contact the author of this submission directly for specific questions about the implementation.