apt-config is an internal program used by various portions of
the APT suite to provide consistent configurability. It accesses the main
configuarion file /etc/apt/apt.conf in a manner that is
easy to use by scripted applications.
Unless the -h, or --help option is given one of the
commands below must be present.
shell is used to access the configuration information from a shell
script. It is given pairs of arguments, the first being a shell
variable and the second the configuration value to query. As output
it lists a series of shell assignments commands for each present value.
In a shell script it should be used like:
This will set the shell environment variable $OPTS to the value of
MyApp::Options with a default of -f.
The configuration item may be postfixed with a /[fdbi]. f returns file
names, d returns directories, b returns true or false and i returns an
integer. Each of the returns is normalized and verified internally.
Just show the contents of the configuration space.
All command line options may be set using the configuration file, the
descriptions indicate the configuration option to set. For boolean
options you can override the config file by using something like
-f-,--no-f, -f=no or several other variations.
Show a short usage summary.
Show the program verison.
Configuration File; Specify a configuration file to use.
The program will read the default configuration file and then this
configuration file. See apt.conf(5) for syntax information.
Set a Configuration Option; This will set an arbitary configuration
option. The syntax is -o Foo::Bar=bar.