How is the Linux file system organized?

"/proc/self/ |-- attr |-- cwd -> /proc |-- fd | `-- 3 -> /proc/15589/fd |-- fdinfo |-- net | |-- dev_snmp6 | |-- netfilter | |-- rpc | | |-- auth.rpcsec.context | | |-- auth.rpcsec.init | | |-- auth.unix.gid | | |-- auth.unix.ip | | |-- nfs4.idtoname | | |-- nfs4.nametoid | | |-- nfsd.export | | `-- nfsd.fh | `-- stat |-- root -> / `-- task `-- 15589 |-- attr |-- cwd -> /proc |-- fd | `-- 3 -> /proc/15589/task/15589/fd |-- fdinfo `-- root -> / Figure 9.1.: The Linux file system (like most file systems), defines a tree directory structure. Each file and directory is contained in subdirectories all contained within the root directory, / . This diagram was generated by the Tree command, http://mama.indstate.edu/users/ice/tree/ ."