setopt [ {+|-}options | {+|-}o option_name ] [ -m ] [ name ... ]
       Set  the  options  for the shell.  All options specified either with
       flags or by name are set.

       If no arguments are supplied, the names of all options currently set
       are printed.  The form is chosen so as to minimize  the  differences
       from the default options for the current emulation (the default emu-
       lation  being  native  zsh, shown as <Z> in zshoptions(1)).  Options
       that are on by default for the emulation are shown with  the  prefix
       no  only  if they are off, while other options are shown without the
       prefix no and only if they are on.  In addition to  options  changed
       from  the default state by the user, any options activated automati-
       cally by the shell (for example, SHIN_STDIN or INTERACTIVE) will  be
       shown  in  the  list.   The format is further modified by the option
       KSH_OPTION_PRINT, however the rationale for choosing options with or
       without the no prefix remains the same in this case.

       If the -m flag is given the arguments are taken as  patterns  (which
       should  be  quoted to protect them from filename expansion), and all
       options with names matching these patterns are set.

       Note that a bad option name does not cause execution  of  subsequent
       shell  code  to be aborted; this behaviour is different from that of
       `set -o'.  This is because set is regarded as a special  builtin  by
       the POSIX standard, but setopt is not.
