ckyorn man page on SunOS

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ckyorn(1)			 User Commands			     ckyorn(1)

NAME
       ckyorn, erryorn, helpyorn, valyorn - prompts for and validates 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 definition  (including  new‐
       line) 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  mes‐
       sage (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 message), 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	crite‐
		       ria.

       -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 combi‐
		       nation 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).

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE 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:

       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.

SunOS 5.10			  14 Sep 1992			     ckyorn(1)
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