Page 67 - DCAP602_NETWORK_OPERATING_SYSTEMS_I

Unit 3: File System Hierarchy

notes
/bin Symbolic link to the /usr/bin directory.
/dev Contains device nodes for special files for local devices. The /dev
directory contains special files for tape drives, printers, disk partitions,
and terminals.
/etc Contains configuration files that vary for each machine. Examples
include:
• /etc/hosts
• /etc/passwd

/export Contains the directories and files on a server that are for remote clients.
/home Serves as a mount point for a file system containing user home
directories. The /home file system contains per-user files and
directories.
In a standalone machine, a separate local file system is mounted over
the /home directory. In a network, a server might contain user files that
should be accessible from several machines. In this case, the server's
copy of the /home directory is remotely mounted onto a local /home file
system.
/lib Symbolic link to the /usr/lib directory, which contains architecture-
independent libraries with names in the form lib*.a.
/sbin Contains files needed to boot the machine and mount the /usr file
system. Most of the commands used during booting come from the boot
image's RAM disk file system; therefore, very few commands reside in
the /sbin directory.
/tmp Serves as a mount point for a file system that contains system-generated
temporary files.
/u Symbolic link to the /home directory.
/usr Serves as a mount point for a file system containing files that do not
change and can be shared by machines (such as executable programs
and ASCII documentation).
Standalone machines mount a separate local file system over the /usr
directory. Diskless and disk-poor machines mount a directory from a
remote server over the /usr file system.
/var Serves as a mount point for files that vary on each machine. The /var
file system is configured as a file system because the files that it
contains tend to grow. For example, it is a symbolic link to the /usr/tmp
directory, which contains temporary work files.



Caselet windows file systems

he configuration of my system is as follows: Pentium III, 40 GB hard disk, Samsung
CD-RW and D-link external modem. My system is very slow and a lot of applications
Thave expired due to shareware and demo software. I formatted my system about
three years ago and would like to reformat it now. I know there are three types of formats:
fat, fat32, and ntfs that are possible. Could you explain what they mean and which one I
ought to opt for? Also, what operating system should I install?
srinath rao

The newer operating systems such as Windows 2000 and Windows XP support three file
systems for formatting the hard disk. They are FAT, FAT32 and NTFS file systems.
Basically, a file system is a system for organising directories and files, generally in terms of
how it is implemented in the disk operating system. Contd...

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