CKUID(1) User Commands CKUID(1)


ckuid, erruid, helpuid, valuid - prompts for and validates a user ID


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

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

/usr/sadm/bin/helpuid [-W width] [-m] [-h help]

/usr/sadm/bin/valuid input


The ckuid utility prompts a user and validates the response. It defines,
among other things, a prompt message whose response should be an existing
user ID, text for help and error messages, and a default value (which are
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. 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 ckuid command. They are
erruid (which formats and displays an error message), helpuid (which
formats and displays a help message), and valuid (which validates a
response). These modules should be used in conjunction with FML objects.
In this instance, the FML 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.

Displays a list of all logins when help is requested or
when the user makes an error.

-p prompt
Defines the prompt message as prompt.

Specifies that quit will not be allowed as a valid

-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.


The following operand is supported:

Input to be verified against /etc/passwd.


The following exit values are returned:

Successful execution.

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

Usage error.

User termination (quit).




The default prompt for ckuid is:

Enter the login name of an existing user [?,q]:

The default error message is:

ERROR - Please enter the login name of an existing user.

If the -m option is used, the default error message is:

ERROR: Please enter one of the following login names: <List>

The default help message is:

Please enter the login name of an existing user.

If the -m option is used, the default help message is:

Please enter one of the following login names: <List>

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

September 14, 1992 CKUID(1)