delete

Delete a file in the root directory:

% Create the FTP object and get the contents
ftpObj = ftp('ftp://127.0.0.1:60000','user', 'password');
disp('Contents of the root directory:')
dir(ftpObj)
% Delete the file 'file1.txt'
delete(ftpObj,'file1.txt')
% Verify that the file has been deleted
disp('Contents of root directory after deleting ''file1.txt'':')
dir(ftpObj)
close(ftpObj);

Contents of the root directory:
ans = drwxrwxrwx   1 owner    group           0 Feb 19 08:53 Folder1
drwxrwxrwx   1 owner    group           0 Feb 19 08:53 Folder2
-rw-rw-rw-   1 owner    group           0 Feb 19 08:53 file1.txt
-rw-rw-rw-   1 owner    group           0 Feb 19 08:53 file2.txt

Contents of root directory after deleting 'file1.txt':
ans = drwxrwxrwx   1 owner    group           0 Feb 19 08:53 Folder1
drwxrwxrwx   1 owner    group           0 Feb 19 08:53 Folder2
-rw-rw-rw-   1 owner    group           0 Feb 19 08:53 file2.txt

Delete a file using the relative path:

% Create the FTP object and get the contents of 'Folder1'
ftpObj = ftp('ftp://127.0.0.1:60000','user', 'password');
disp('Contents of ''Folder1'':')
dir(ftpObj,'Folder1');
% Use the relative path to delete 'file1_1.txt'
delete(ftpObj,'Fodler1/file1_1.txt')
% Verify that the file has been deleted
disp('Contents of ''Folder1'' after deleting ''file1_1.txt'':')
dir(ftpObj,'Folder1')
close(ftpObj);

Contents of 'Folder1':
ans = -rw-rw-rw-   1 owner    group           0 Feb 19 08:52 file1_1.txt
-rw-rw-rw-   1 owner    group           0 Feb 19 08:52 file1_2.txt

Contents of 'Folder1' after deleting 'file1_1.txt':
ans = -rw-rw-rw-   1 owner    group           0 Feb 19 08:52 file1_2.txt