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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.
-e error Defines the error message as error.
SunOS 5.10 Last change: 14 Sep 1992 1
User Commands ckyorn(1)
-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
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.
SunOS 5.10 Last change: 14 Sep 1992 2
User Commands ckyorn(1)
2 Usage error.
3 User termination (quit).
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
____________________________________________________________
| 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 Last change: 14 Sep 1992 3
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This page was generated on Wed Sep 12 11:24:30 GMT 2007
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