Manual Pages for UNIX Operating System command usage for man valpath

User Commands                                           ckpath(1)



NAME
     ckpath, errpath, helppath, valpath - display a prompt;  ver-
     ify and return a pathname

SYNOPSIS
     ckpath [-Q] [-W width] [-a | l] [-b | c | f | y]
          [-n [o | z]] [-rtwx] [-d default] [-h help]
          [-e error] [-p prompt] [-k pid [-s signal]]


     /usr/sadm/bin/errpath [-W width] [-a | l] [-b | c | f | y]
          [-n [o | z]] [-rtwx] [-e error]


     /usr/sadm/bin/helppath [-W width] [-a | l] [-b | c | f | y]
          [-n [o | z]] [-rtwx] [-h help]


     /usr/sadm/bin/valpath [-a | l] [-b | c | f | y]
          [-n [o | z]] [-rtwx] input


DESCRIPTION
     The  ckpath  utility  prompts  a  user  and  validates   the
     response.  It  defines, among other things, a prompt message
     whose response should be a pathname, text for help and error
     messages, and a default value (which is returned if the user
     responds with a RETURN).


     The pathname must obey the criteria specified by  the  first
     group  of  options.  If no criteria is defined, the pathname
     must be for a normal file that does not yet exist.  If  nei-
     ther -a (absolute) or -l (relative) is given, then either is
     assumed to be valid.


     All messages are limited in length to 79 characters and  are
     formatted automatically. Tabs and newlines are removed after
     a single white space character in a message definition,  but
     spaces are not removed. When a tilde is placed at the begin-
     ning 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 EXAMPLES) is displayed.


     Three visual tool modules are linked to the ckpath  command.
     They  are  errpath  (which  formats  and  displays  an error



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User Commands                                           ckpath(1)



     message on the standard output), helppath (which formats and
     displays a help message on the standard output), and valpath
     (which validates a response).

OPTIONS
     The following options are supported:

     -a            Pathname must be an absolute path.


     -b            Pathname must be a block special file.


     -c            Pathname must be a character special file.


     -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.


     -f            Pathname must be a regular file.


     -h help       Defines the help message as  help.


     -k pid        Specifies that process ID pid is to be sent  a
                   signal if the user chooses to quit.


     -l            Pathname must be a relative path.


     -n            Pathname must not exist (must be new).


     -o            Pathname must exist (must be old).


     -p prompt     Defines the prompt message as prompt.


     -Q            Specifies that quit is not allowed as a  valid
                   response.


     -r            Pathname must be readable.




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User Commands                                           ckpath(1)



     -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.


     -t            Pathname must be creatable (touchable).  Path-
                   name  will  be  created if it does not already
                   exist.


     -w            Pathname must be writable.


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


     -x            Pathname must be executable.


     -y            Pathname must be a directory.


     -z            Pathname  must  have  a  file  having  a  size
                   greater than zero bytes.


OPERANDS
     The following operand is supported:

     input    Input to be verified against validation options.


EXAMPLES
     The text of the default messages  for  ckpath  depends  upon
     the criteria options that have been used.

     Example 1 Default prompt


     An example default prompt for ckpath (using the  -a  option)
     is:


       example% ckpath -a
       Enter an absolute pathname [?,q]



     Example 2 Default error message




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User Commands                                           ckpath(1)



     An example default error message (using the -a option) is:


       example% /usr/sadm/bin/errpath -a
       ERROR: A pathname is a filename, optionally preceded by parent
              directories.
              The pathname you enter: - must begin with a slash (/)



     Example 3 Default help message


     An example default help message (using the -a option) is:


       example% /usr/sadm/bin/helppath -a
       A pathname is a filename, optionally preceded by parent directories.
       The pathname you enter: - must begin with a slash (/)



     Example 4 The quit option


     When the quit option is chosen (and allowed), q is  returned
     along  with  the  return  code 3. Quit input gets a trailing
     newline.


     Example 5 Using the valpath module


     The valpath module will produce a usage message  on  stderr.
     It returns  0 for success and non-zero for failure.


       example% /usr/sadm/bin/valpath
       usage: valpath [-[a|l][b|c|f|y][n|[o|z]]rtwx] input
           .
           .
           .



EXIT STATUS
     The following exit values are returned:

     0    Successful execution.






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User Commands                                           ckpath(1)



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


     2    Mutually exclusive options.


     3    User termination (quit).


     4    Mutually exclusive options.


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



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcs                      |
    |_____________________________|_____________________________|


SEE ALSO
     signal.h(3HEAD), attributes(5)



























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