The options are as follows:
Flags are a comma separated list of keywords. The following keywords are currently defined:
arch set the archived flag (super-user only) opaque set the opaque flag (owner or super-user only) nodump set the nodump flag (owner or super-user only) sappnd set the system append-only flag (super-user only) schg set the system immutable flag (super-user only) uappnd set the user append-only flag (owner or super-user only) uchg set the user immutable flag (owner or super-user only)
Putting the letters ``no'' before an option causes the flag to be turned off. For example:
nouchg the immutable bit should be cleared
Symbolic links do not have flags, so unless the -H or -L option is set, on a symbolic link always succeeds and has no effect. The -H -L and -P options are ignored unless the -R option is specified. In addition, these options override each other and the command's actions are determined by the last one specified.
The utility exits 0 on success, and >0 if an error occurs.