.\" -*- Mode: Nroff -*- .\" ucfr.1 --- .\" Author : Manoj Srivastava ( srivasta@glaurung.internal.golden-gryphon.com ) .\" Created On : Tue Apr 11 13:58:23 2006 .\" Created On Node : glaurung.internal.golden-gryphon.com .\" Last Modified By : Manoj Srivastava .\" Last Modified On : Tue Apr 11 14:43:23 2006 .\" Last Machine Used: glaurung.internal.golden-gryphon.com .\" Update Count : 14 .\" Status : Unknown, Use with caution! .\" HISTORY : .\" Description : .\" .\" arch-tag: f2f569c2-5b54-4e5d-83f0-d2a39e103ecb .\" .\" Copyright (c) 2006 Manoj Srivastava .\" .\" This is free documentation; you can redistribute it and/or .\" modify it under the terms of the GNU General Public License as .\" published by the Free Software Foundation; either version 2 of .\" the License, or (at your option) any later version. .\" .\" The GNU General Public License's references to "object code" .\" and "executables" are to be interpreted as the output of any .\" document formatting or typesetting system, including .\" intermediate and printed output. .\" .\" This manual is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public .\" License along with this manual; if not, write to the Free .\" Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA .\" 02111-1307, USA. .\" .TH UCFR 1 "Feb 16 2018" "Debian" "Debian GNU/Linux manual" .SH NAME ucfr \- Update Configuration File Registry: associate packages with configuration files .SH SYNOPSIS .B ucfr .RI [ options "] " .I .I .SH DESCRIPTION Where .I Package is the package associated with the configuration file (and, in some sense, its owner), and .I Path to configuration file is the full path to the location (usually under /etc) where the configuration file lives, and is potentially modified by the end user. Please note that usually this means that we register actual files, and not symbolic links to files. .B ucfr will follow symbolic links and register the real file, and not the symbolic link. .PP This script maintains an association between configuration files and packages, and is meant to help provide facilities that .I dpkg provides conffiles for configuration files and not shipped in a .B Debian package, but handled by the postinst by .I ucf instead. This script is idempotent, associating a package to a file multiple times is not an error. It is normally an error to try to associate a file which is already associated with another package, but this can be overridden by using the .I \-\-force option. .SH OPTIONS .TP .B "\-h, \-\-help" Print a short usage message .TP .B "\-n, \-\-no\-action" Dry run. Print the actions that would be taken if the script is invoked, but take no action. .TP .B "\-d [n], \-\-debug [n]" Set the debug level to the (optional) level .I n (n defaults to 1). This turns on copious debugging information. .TP .B "\-p, \-\-purge" Removes all vestiges of the association between the named package and the configuration file from the registry. The association must already exist; if the configuration file is associated with some other package, an error happens, unless the option .I \-\-force is also given. In that case, the any associations for the configuration file are removed from the registry, whether or not the package name matches. This action is idempotent, asking for an association to be purged multiple times does not result in an error, since attempting to remove an non-existent association is silently ignored unless the .I \-\-verbose option is used (in which case it just issues a diagnostic). .TP .B "\-v, \-\-verbose" Make the script be very verbose about setting internal variables. .TP .B "\-f, \-\-force" This option forces operations requested even if the configuration file in consideration is owned by another package. This allows a package to .I "hijack" a configuration file from another package, or to purge the association between the file and some other package in the registry. .TP .B "\-\-state\-dir /path/to/dir" Set the state directory to /path/to/dir instead of the default .I /var/lib/ucf. Used mostly for testing. .SH USAGE The most common case usage is pretty simple: a single line invocation in the postinst on configure, and another single line in the postrm to tell .B ucfr to forget about the association with the configuration file on purge (using the \-\-purge option) is all that is needed (assuming ucfr is still on the system). .SH FILES .I /var/lib/ucf/registry, and .I /var/lib/ucf/registry.X, where .I X is a small integer, where previous versions of the registry are stored. .PP .I /etc/ucf.conf .SH EXAMPLES If the package .I foo wants to use ucfr to associate itself with a configuration file .I foo.conf, a simple invocation of ucfr in the postinst file is all that is needed: .PP .B ucfr .I foo .I /etc/foo.conf .PP On purge, one should tell ucf to forget about the file (see detailed examples in /usr/share/doc/ucf/examples): .PP .B ucfr .I \-\-purge .I foo .I /etc/foo.conf .PP If you want to remove all the conf files for a given package .I foo, the simplest way is to use .B ucfq. For example .PP .B ucfq .I \-w .I foo | .B cut .I \-d : \-f 1 | .B while read .I cfile ; .B do .B ucfr .I \-v $cfile ; .B done .SH "SEE ALSO" ucf(1), ucf.conf(5). .SH AUTHOR This manual page was written Manoj Srivastava , for the Debian GNU/Linux system.