File Transfer command being executed.
Options:
- GET - Copies a remote file to the local computer.
- PUT - Copies a local file to the remote computer.
- MGET - Copies multiple remote files to the local computer.
- MPUT - Copies multiple local files to the remote computer.
- DELETE - Deletes the specified file from the remote computer.
- MDELETE - Deletes the specified file(s) from the remote computer
- MKDIR - Creates the specified directory on the remote computer.
- RMDIR - Removes the specified directory from the remote computer.