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Linux in a Nutshell, 6th Edition by Robert Love, Stephen Figgins, Ellen Siever, Arnold Robbins

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Name

dpkg-query

Synopsis

dpkg-query [option] command

Display information about packages listed in the dpkg database. You can also use dpkg-query as a backend for dpkg, instead of calling dpkg-query directly.

Commands

--help

Print help information and exit.

-l [patterns], --list [patterns]

List packages whose names match any of the specified patterns. With no pattern specified, list all packages in /var/lib/dpkg/status. The pattern may need to be in quotes to avoid expansion by the shell.

-L packages, --listfiles packages

List files installed on your system from each of the specified packages. This command does not list files created by package-specific installation scripts.

--license, --licence

Print the license information and exit.

-p package, --print-avail package

Display details for the specified package, as found in /var/lib/dpkg/available.

-s package, --status package

Report on the status of the specified package.

-S patterns, --search patterns

Search the installed packages for filenames matching one of the specified patterns. At least one pattern must be specified.

-W [patterns], --show [patterns]

Like -l, but the output can be customized with the --showformat option.

--version

Print version information and exit.

Options

--admindir=dir

Use dir as the location of the dpkg database. The default is /var/lib/dpkg.

-f format, --showformat=format

Specify the output format for -W/--show. The format can include the standard escape sequences \n (newline), \r (carriage return), or \\ (backslash). Specify package ...

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