apt-cache showpkg package_name apt-cache policy There is another option showpkg that displays information about the package name, version and its forward and reverse dependencies. You can see all kinds of details in the package metadata like name, version, developer, maintainer, repository, short and long description, package size, and even checksum. If you know the exact package name (or if you have managed to find it with the search), you can get the detailed metadata information on the package. It can also be used with -names-only flag. If you want complete details of all the matched packages, you may use the -full flag. apt-cache search -names-only package_name You can narrow down your search to look for the search term in package names only. It shows the matching package along with its short description in alphabetical order. apt-cache search package_nameīy default, it looks for the search term in both the name and description of the package. You can use a regex pattern to search for a package in the local APT cache. The most common use of apt-cache command is for finding packages. How do you do that? You use the command: sudo apt update Search for packages It is always a good idea to update the local APT cache to sync it with the remote repositories. This is why I will show only the most common and useful examples of the apt-cache command in this tutorial.
However, you probably won’t need to use all of them. Like any other Linux command, there are several options available with apt-cache and you can always refer to its man page to read about them. Needless to say, the APT packaging system is used on Debian and Debian-based Linux distributions like Ubuntu, Linux Mint, elementary OS etc. For that you’ll have to use the apt-get clean command. Surprisingly, apt-cache doesn’t clear the APT cache. Which repository metadata to cache depends on the repositories added in your source list in the /etc/apt/sources.list file and additional repository files located in ls /etc/apt/ directory. The location of APT cache is /var/lib/apt/lists/ directory. I’ll show you how to use the apt-cache command with examples. You can search for the availability of a package, its version number, its dependencies among other things. With the apt-cache command, you can query this local APT cache and get relevant information. The metadata usually consists of information like the package name, version, description, dependencies, repository and developers.
The apt package manager works on a local cache of package metadata.
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