enable [ -afmr ] 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  aliases.  The -f option causes
       enable to act on shell functions.   The  -r  option
       causes  enable  to  act on reserved words.  Without
       arguments all enable hash table elememts  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 corre-
       sponding hash table  matching  these  patterns  are
       enabled.   Enabled objects can be disabled with the

       disable builtin command.
