enable [ -afmprs ] name ...
       Enable the named hash table elements, presumably disabled earlier
       with disable.  The default is to enable builtin commands.  The -a
       option causes enable to act on regular or global aliases.  The -s
       option causes enable to act on suffix aliases.  The -f option
       causes enable to act on shell functions.  The -r option causes
       enable to act on reserved words.  Without arguments all enabled
       hash table elements from the corresponding hash table are printed.
       With the -m flag the arguments are taken as patterns (should be
       quoted) and all hash table elements from the corresponding hash
       table matching these patterns are enabled.  Enabled objects can be
       disabled with the disable builtin command.

       enable -p reenables patterns disabled with disable -p.  Note that
       it does not override globbing options; for example, `enable -p
       "~"' does not cause the pattern character ~ to be active unless
       the EXTENDED_GLOB option is also set.  To enable all possible
       patterns (so that they may be individually disabled with disable
       -p), use `setopt EXTENDED_GLOB KSH_GLOB NO_SH_GLOB'.
