disable [ -afmrs ] name ...
       Temporarily  disable the named hash table elements.
       The default is to disable builtin  commands.   This
       allows you to use an external command with the same
       name as a builtin command.  The  -a  option  causes
       disable  to  act on regular or global aliases.  The
       -s option causes disable to act on suffix  aliases.
       The  -f option causes disable to act on shell func-
       tions.  The -r options causes  disable  to  act  on
       reserved  words.   Without  arguments  all disabled
       hash table elements  from  the  corresponding  hash
       table  are printed.  With the -m flag the arguments
       are taken as patterns (which should  be  quoted  to
       prevent  them  from undergoing filename expansion),
       and all hash table elements from the  corresponding
       hash  table  matching  these patterns are disabled.
       Disabled objects can be  enabled  with  the  enable
       command.
