The Filesystem of the UNIX family is very well organized. There are a handful of compatible naming conventions used by various systems. For example,
/etc is usually used for critical system and configuration files.
/bin have the important utilities.
/tmp are for temporary files.
Without further ado. Here are the standard directories used by most UNIX systems
|Pathname||Functionalities and Contents|
|/bin|| Operating system commands. In some systems
|/boot||Kernel and files needed to load the kernel|
|/dev||Device entries for disks, printers|
|/etc||Critical system and configuration files|
|/home||Home directories for users|
|/lib||Libraries, shared libraries|
|/opt||Optional software packages|
|/sbin||Commands needed for minimal system operability|
|/tmp||Storage for temporary files|
|/usr||Contains more folders inside|
|/var||System specific data and configuration files|
This can serve as a reference in the future for anyone wanting to learn the filesystem of the UNIX family