chmod [OPTION]... MODE[,MODE]... FILE... chmod [OPTION]... OCTAL-MODE FILE... chmod [OPTION]... --reference=RFILE FILE...
The behaviors specified in this section are expected to disappear from a future version of the LSB; applications should only use the non-LSB-deprecated behaviors.
is like verbose, but reports only when a change is made.
suppresses most error messages.
uses RFILE's mode instead of MODE values.
outputs a diagnostic for every file processed.
outputs version information and exits.