Useful apt commands
apt-cache search [searchterm]
search local apt-cache for a package containing [searchterm]
apt-file list [packagename]
lists all files associated with [packagename], even if the package is not installed
apt-file search [/path/to/file]
search for the package that “owns” [/path/to/file]
apt-cache madison [packagename]
displays all available versions of [packagename]
apt-get install [packagename]=[version]
force apt to install a specific version of a package
Themocracy