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     ckyorn, erryorn, helpyorn, valyorn - prompts for  and  vali-
     dates yes/no

     ckyorn [-Q] [-W width] [-d default] [-h help] [-e error]  [-
     p prompt] [ -k pid [-s signal]]

     /usr/sadm/bin/erryorn [-W width] [-e error]

     /usr/sadm/bin/helpyorn [-W width] [-h help]

     /usr/sadm/bin/valyorn input

     ckyorn  prompts  a  user  and  validates  the  response.  It
     defines,  among  other things, a prompt message for a yes or
     no answer, text for help and error messages, and  a  default
     value  (which  is  returned  if  the  user  responds  with a

     All messages are limited in length to 70 characters and  are
     formatted automatically. Any white space used in the defini-
     tion (including newline) is stripped. The -W option  cancels
     the  automatic  formatting.  When  a  tilde is placed at the
     beginning or end of a message definition, the  default  text
     is inserted at that point, allowing both custom text and the
     default text to be displayed.

     If the prompt, help or error message  is  not  defined,  the
     default message (as defined under NOTES) is displayed.

     Three visual tool modules are linked to the ckyorn  command.
     They  are  erryorn (which formats and displays an error mes-
     sage), helpyorn (which formats and displays a help message),
     and  valyorn  (which  validates  a  response). These modules
     should be used in conjunction with  FACE  objects.  In  this
     instance, the  FACE object defines the prompt.

     The following options are supported:

     -d default      Defines the default value as  default.   The
                     default  is  not  validated  and so does not
                     have to meet any criteria.

     -e error        Defines the error message as error.

     -h help         Defines the help messages as help.

     -k pid          Specifies that process ID pid is to be  sent
                     a signal if the user chooses to abort.

     -p prompt       Defines the prompt message as prompt.

     -Q              Specifies that quit will not be allowed as a
                     valid response.

     -s signal       Specifies that the process  ID  pid  defined
                     with the -k option is to be sent signal sig-
                     nal when quit is chosen.  If  no  signal  is
                     specified, SIGTERM is used.

     -W width        Specifies that prompt, help and  error  mes-
                     sages  will be formatted to a line length of

     The following operand is supported:

     input           Input to be verified as y, yes, or n, no (in
                     any  combination  of  upper-  and lower-case

     The following exit values are returned:

     0        Successful execution.

     1        EOF on input, or negative width on  -W option,   or
              usage error.

     2        Usage error.

     3        User termination (quit).

     See attributes(5) for descriptions of the  following  attri-

    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    | Availability                | SUNWcsu                     |


     The default prompt for ckyorn is:

     Yes or No [y,n,?,q]:

     The default error message is:

     ERROR - Please enter yes or no.

     The default help message is:

     To respond in the affirmative, enter y, yes, Y, or YES.
     To respond in the negative, enter n, no, N, or NO.

     When the quit option is chosen (and allowed), q is  returned
     along  with  the  return code 3. The valyorn module will not
     produce any output.  It returns  0 for success and  non-zero
     for failure.

Man pages from Solaris 10 Update 8. See docs.sun.com and www.oracle.com for further documentation and Solaris information.