Debian dpkg-query package management program query tool version 1.18.4 (amd64). This is free software; see the GNU General Public License version 2 or later for copying conditions. There is NO warranty.

Usage: dpkg-query [<option> ...] <command> Commands: -s|--status <package> ... Display package status details. -p|--print-avail <package> ... Display available version details. -L|--listfiles <package> ... List files 'owned' by package(s). -l|--list [<pattern> ...] List packages concisely. -W|--show [<pattern> ...] Show information on package(s). -S|--search <pattern> ... Find package(s) owning file(s). --control-list <package> Print the package control file list. --control-show <package> <file> Show the package control file. -c|--control-path <package> [<file>] Print path for package control file. -?, --help Show this help message. --version Show the version. Options: --admindir=<directory> Use <directory> instead of /var/lib/dpkg. --load-avail Use available file on --show and --list. -f|--showformat=<format> Use alternative format for --show. Format syntax: A format is a string that will be output for each package. The format can include the standard escape sequences \n (newline), \r (carriage return) or \\ (plain backslash). Package information can be included by inserting variable references to package fields using the ${var[;width]} syntax. Fields will be right-aligned unless the width is negative in which case left alignment will be used.