User Commands                                           ckyorn(1)



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

SYNOPSIS
     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


DESCRIPTION
     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
     RETURN).


     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.

OPTIONS
     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.



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User Commands                                           ckyorn(1)



     -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 signal when
                   quit is chosen. If  no  signal  is  specified,
                   SIGTERM is used.


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


OPERANDS
     The following operand is supported:

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


EXIT STATUS
     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).


ATRIBUTES




SunOS 5.11          Last change: 14 Sep 1992                    2






User Commands                                           ckyorn(1)



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



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Availability                 SUNWcsu                     
    


SEE ALSO
     attributes(5)

NOTES
     The default prompt for ckyorn is:

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




     The default error message is:

       EROR - 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.













SunOS 5.11          Last change: 14 Sep 1992                    3