ckyorn(1) ckyorn(1)
NAME
ckyorn - prompt for and validate yes/no
SYNOPSIS
ckyorn [-Q] [-W width] [-d default] [-h help] [-e error]
[-p prompt] [-k pid [-s signal]]
erryorn [-W width] [-e error]
helpyorn [-W width] [-h help]
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 newline) is stripped. The -W option
cancels the automatic formatting. For the -h and -e options,
placing a tilde at the beginning or end of a message
definition causes the default text to be inserted at that
point. This allows 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 NOTICES) 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 FMLI objects. In
this instance, the FMLI object defines the prompt.
The options and arguments for this command are:
-Q Do not allow quit as a valid response.
-W Use width as the line length for prompt, help, and error
messages.
-d The default value is default. The default is not
validated and so does not have to meet any criteria.
Copyright 1994 Novell, Inc. Page 1
ckyorn(1) ckyorn(1)
-h The help message is help.
-e The error message is error.
-p The prompt message is prompt.
-k Send process ID pid a signal if the user chooses to
abort.
-s When quit is chosen, send signal to the process whose
pid is specified by the -k option. If no signal is
specified, use SIGTERM.
input Input to be verified as y, yes, Y, Yes, YES or n, no, N,
No, NO.
EXIT CODES
0 = Successful execution
1 = EOF on input
1 = Usage error
3 = User termination (quit)
NOTICES
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:
Enter y or yes if your answer is yes;
or no if your answer is no.
When the quit option is chosen (and allowed), q is returned
along with the return code 3. The valyorn module does not
produce any output. It returns zero for success and non-zero
for failure.
Copyright 1994 Novell, Inc. Page 2