tldr/pages/linux/dpkg-query.md

# dpkg-query

> A tool that shows information about installed packages.
> More information: <https://manpages.debian.org/latest/dpkg/dpkg-query.1.html>.

- List all installed packages:

`dpkg-query --list`

- List installed packages matching a pattern:

`dpkg-query --list '{{libc6*}}'`

- List all files installed by a package:

`dpkg-query --listfiles {{libc6}}`

- Show information about a package:

`dpkg-query --status {{libc6}}`

- Search for packages that own files matching a pattern:

`dpkg-query --search {{/etc/ld.so.conf.d}}`