The file
/etc/ucf.conf
is actually a
Bourne Shell
snippet included during the package build process, and hence you may
put any shell directive in that file (just make very sure you know
what you are doing).
All the variables have reasonable default values, and some may be
overridden on a per run or a per individual basis by using
environment variables, and all configurable variables can be
overridden by options to the scripts themselves.
The value of a variable can be set so:
a)
Defaults exist in the rules file. These are the values used if no
customization is done.
b)
Some variables can be set in the config file
/etc/ucf.conf.
These values override the defaults.
c)
Some variables can also be set by setting a corresponding environment
variable. These values override the config file and the defaults.
d)
Using script command line
options. All configurable variables may be set by this method, and
will override the other methods above.
Configuration File options
At the moment, the user modifiable variables supported are:
DEBUG
Debugging information: The default value is 0 (no debugging
information is printed). To enable debugging output, set the value to
1.
VERBOSE
Verbosity: The default value is 0 (quiet). To change the default
behavior, set the value to 1.
conf_force_conffold
Force the installed file to be retained. The default is to have this
variable unset, which makes the script ask in case of doubt. This can
be overridden by the environment variable
UCF_FORCE_CONFFOLD
conf_force_conffnew
Force the installed file to be overridden. The default is to have this
variable unset, which makes the script ask in case of doubt. This can
be overridden by the environment variable
UCF_FORCE_CONFFNEW
conf_source_dir
This is the directory where the historical md5sums for a file are
looked for. Specifically, the historical md5sums are looked for in
either the file
${filename}.md5sum,
or the subdirectory
${filename}.md5sum.d/
conf_old_mdsum_file
Force the historical md5sums to be read from this file, rather than
defaulting to living in the source directory. Setting this option
overrides settings in the environment variable
UCF_OLD_MDSUM_FILE
