reconfigure an already installed package NAME dpkg-reconfigure - reconfigure an already installed package SYNOPSIS dpkg-reconfigure [options] packages DESCRIPTION dpkg-reconfigure …let packages ask questions prior to their installation NAME dpkg-preconfigure - let packages ask questions prior to their installation SYNOPSIS dpkg-preconfigure [options] package.…run scripts or programs in a directory NAME run-parts - run scripts or programs in a directory SYNOPSIS run-parts [--test] [--verbose] [--debug] [--report] [--lsbsysinit] [--regex=…show, set and unset various settings for a package NAME apt-mark - show, set and unset various settings for a package SYNOPSIS apt-mark { -f= filename | {auto | manual} pkg ... | {…remove shells from the list of valid login shells NAME remove-shell - remove shells from the list of valid login shells SYNOPSIS remove-shell shellname [ shellname ...] DESCRIPTION…add shells to the list of valid login shells NAME add-shell - add shells to the list of valid login shells SYNOPSIS add-shell shellname [ shellname ...] DESCRIPTION add-shell copie…update the list of valid login shells NAME update-shells - update the list of valid login shells SYNOPSIS update-shells [ options ] DESCRIPTION update-shells locates the shells pro…APT package handling utility -- command-line interface NAME apt-get - APT package handling utility -- command-line interface SYNOPSIS apt-get [ -sqdyfmubV ] [ -o= config_string ] […query the APT cache NAME apt-cache - query the APT cache SYNOPSIS apt-cache [ -agipns ] [ -o= config_string ] [ -c= config_file ] {gencaches | showpkg pkg ... | showsrc pkg ... | s…command-line interface NAME apt - command-line interface SYNOPSIS apt [ -h ] [ -o= config_string ] [ -c= config_file ] [ -t= target_release ] [ -a= architecture ] {list | search | …