Linux File System Hierarchy

In Linux, the top level directory represented by “/”. It is also known as ROOT directory or Parent directory. (The root account is like a system administrator account. It provides you full control of the system. You can create and maintain user accounts, assign different permission for each account, etc.)
The home directory for root user is “/root”. It is also known as Super user. It provides working environment for root user.
The home directory for all other users is “/home”. It provides working environment for all other users.
The default software’s are installed in “/usr” (Unix Sharable Resources directory)
The commands used by all users are stored in “/bin” whereas the commands used by Super user stored in “/sbin” directory.
The variables data like mails, log files stored in “/var” directory
The /tmp directory is a temporary landing place for files. All users can access this directory.

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