=head1	NAME

dkpref - Manage preferences

=head1	SYNOPSIS

  dkpref [<options>] <name> [<value>]

=head1	DESCRIPTION

The dkpref program can be used to retrieve and set preferences
used by the dkapp module.

If there is no I<value> specified on the command line the program
show the current preference value.

If there is a I<value> the program sets the new preference value.

=head1	OPTIONS

=over	6

=item	B<-a> I<application>

specifies an application name to use.

=item	B<-g> I<group>

specifies an application group name to use.

=item	B<-m>

replaces ``$(...)'' placeholders by their value.

=item	B<-p>

corrects file names (slash/backslash).

=back

=head1	RETURN VALUE

The program returns exit status 0 on success, all other values indicate an
error.

=head1	EXAMPLES

  dkpref -a stc /dir/temp

shows the value of the ``/dir/temp'' preference for application ``stc''.

  dkpref -a stc -m /dir/temp

shows the value of the ``/dir/temp'' preference for application ``stc''
and replaces placeholders so we can see the real path.

  dkpref -a stc -m -p /dir/temp

shows the value of the ``/dir/temp'' preference for application ``stc''
and replaces placeholders so we can see the real path.
Slashes/Backslashes are corrected to show the path as supported by the
used OS.

  dkpref -a foo /any/preference bar

sets the preference ``/any/preference'' for application ``foo'' to ``bar'',

=head1	AUTHOR

Dirk Krause

=head1	COPYRIGHT AND LICENSE

Copyright (c) 2010, Dirk Krause
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above
   copyright notice, this list of conditions and the
   following disclaimer.

 * Redistributions in binary form must reproduce the above
   copyright notice, this list of conditions and the following
   disclaimer in the documentation and/or other materials
   provided with the distribution.

 * Neither the name of the Dirk Krause nor the names of
   contributors may be used to endorse or promote products
   derived from this software without specific prior written
   permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

=head1	SEE ALSO

dkapp(3), http://dktools.sourceforge.net/dkpref.html

