The Linux filesystem structure is somewhat different from that of Windows.
Linux doesn’t have a physical drive (such as the C: drive) at the base of the
filesystem but uses a logical filesystem instead.
Linux filesystem directory Structure explains
The root (/) of the filesystem is at the top of the tree, and the following
are the most important subdirectories to know
/root
/root The home directory of the all-powerful root user
/etc
/etc Generally contains the Linux configuration files—files that control
when and how programs startup
/home
/home The user’s home directory
/mnt
/mnt Where other filesystems are attached or mounted to the filesystem
/media
/media Where CDs and USB devices are usually attached or mounted to
the filesystem
/bin
/bin Where application binaries (the equivalent of executables in
Microsoft Windows) reside
/lib
/lib Where you’ll find libraries (shared programs that are similar to
Windows DLLs)
/mnt
These include terminal devices, USB, or any device attached to the system.
/opt
Optional application software packages. and other package installed
/proc
Virtual filesystem providing process and kernel information as files. In Linux, corresponds to a process mount. Generally automatically generated and populated by the system, on the fly. Linux filesystem directory
