Template:Basic apt-cache commands

• apt-cache search PACKAGE_TO_SEARCH
• apt-cache policy List source repository configured included priorities of each source.
• apt-cache showpkg PACKAGE_NAME (includes package dependencies)

See also: apt show PACKAGE_NAMEdpkg -s PACKAGE_NAME

• apt-cache show PACKAGE_NAME
• apt-cache depends PACKAGE_NAME
• apt-cache rdepends PACKAGE_NAME
• apt changelog PACKAGE_NAME
• apt-cache madison

http://manpages.ubuntu.com/manpages/xenial/man8/apt-cache.8.html#options