Update cheatsheets

linux/dpkg-query

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# 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}}`