mailto(apt@packages.debian.org) manpage(apt-config)(8)(14 Feb 1999)(apt)() manpagename(apt-config)(APT Configuration Query program) manpagesynopsis() apt-config command manpagedescription() bf(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. em(command) is one of: itemize( it() shell ) Unless the -h, or --help option is given one of the above commands must be present. startdit() dit(bf(shell)) bf(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: verb( OPTS="-f" RES=`apt-config shell OPTS MyApp::Options` eval $RES ) This will set the shell environment variable $OPTS to the value of MyApp::Options with a default of -f. If the configuration item to retrieve is prefixed with a / then it will be retrieved using filename mode which prepends base paths. enddit() manpageoptions() 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 bf(-f-), bf(--no-f), bf(-f=no) or several other variations. startdit() dit(bf(-h, --help)) Show a short usage summary. dit(bf(-v, --version)) Show the program verison. dit(bf(-c, --config-file)) Configuration File; Specify a configuration file to use. bf(apt-get) will read the default configuration file and then this configuration file. See bf(apt.conf(5)) for syntax information. dit(bf(-o, --option)) Set a Configuration Option; This will set an arbitary configuration option. The syntax is verb(-o Foo::Bar=bar) enddit() manpageseealso() apt.conf(5) manpagediagnostics() apt-config returns zero on normal operation, decimal 100 on error. manpagebugs() See http://bugs.debian.org/apt. If you wish to report a bug in bf(apt-config), please see bf(/usr/doc/debian/bug-reporting.txt) or the bf(bug(1)) command. manpageauthor() apt-get was written by the APT team .