Everything is a file in Unix and almost every file belongs to a package. That’s a brief description of a filesystem that you can browse in any distribution (distro). In many cases we can name the package after knowing its main files, but sometimes it’s easy to forget when the commands are such a part of your daily life. The GNU coreutils package is, for instance, available in every Linux distro and most of Unix-like systems, but you’re more likely to recall the names of the commands that it holds, such as sort , cat , chmod , chown , chroot , cp , date , dd , echo , hostname , id , ln , ls etc, which are all maintained under the egis of the GNU project.
After…