Permission configuration of proftp

CWD: Change Working Directory, meaning to change the directory;
MKD: MaKe Directory, can create a directory or not;
RNFR: ReName FRom, can change the file name or not;
DELE: DELEt, can delete the file syntax;
RMD: ReMove Directory, can move In addition to the directory or not;
RETR: RETrieve, the meaning of download! The server sends the data to the client;
READ: whether it can be read or not
WRITE: whether it can be written or not
STOR: STORe, which means upload, the data is sent from the client to the server!
ALL: All the action!
http://www.proftpd.org/docs/howto/Limit.html