file system hierarchy in linux

The first thing if you want to learn about linux is to know the file system hierarchy that exists in linux file system. below is the brief description of directories and its usage in linux

/bin : the bin directory contains several useful commands that are of use to both the system administrator as well as non-privileged user

/boot : for GRUB (GNU Grand Unified Bootloader). This directory contains everything required for the boot process.

/dev : the location of device files. In linux you have to remember that everything is a file or directory

/etc : contains all system related configuration files

/home : user home directories

/initrd : provides the capability to load a RAM disk by the bootloader this RAM disk can then be mounted as the root filesystem and programs can be run from it

/lib : contain kernel modules and those shared library

/lost+found : files that are recovered from crash or unproper shutdown are placed here

/media : this directory contains subdirectory which are used as mount points for removable media such as cdrom and flashdisk

/opt : reserve for all the software add-on packages that are not part of the default installation

/proc : this directory is special because it is also a virtual filesystem, it doesn’t contain real file but runtime system information (system memory, devices mounted, hardware configuration etc). It is also regarded as a control and information center for the kernel

/root : the home directory of the system administrator

/sbin : contain binaries essential for booting, restoring, recovering and/or repairing the system in addition to the binaries in /bin

/usr : contains all the user binaries their documentation, libraries, header files etc. This directory only contain read-only data

/var : contains variable data like system logging files

/srv : contains site-specific data which is served by the system

/tmp : this directory contains mostly files that are required temporarily

source : http://tldp.org/LDP/Linux-Filesystem-Hierarchy
             

OpenSolaris

have you know about opensolaris? opensolaris is an opensource edition for solaris. Solaris has been known for its stability as an OS (it’s been around since 1980’s). Solaris can use up to 72 processor and support 256 GB of RAM and run on SPARC processor (although now its support intel for opensolaris edition). Solaris has been used in telecommunication industry for mission-critical machine. A machine that cannot go wrong no matter what. That’s why solaris is so popular in many large corporations for its stability.

here is the property of solaris
1. symmetric multiprocessing
2. 64 bit kernel and process address space
3. modular binary kernel
4. multi threaded process execution
5. multi threaded kernel
6. fully pre-emptable kernel
7. support for multi scheduling

the file system that is used is ZFS
Solaris was developed by sun microsystem.
I think I want to study about solaris from now on.

clipped from www.opensolaris.com Get the goods, and get going fast. Download OpenSolaris, burn it, and boot up. Ask your questions, and share your coolest ideas with the rock stars who wrote the code.

eAR OS

while I surfing the web through stumbleupon I came across this good website that offers a new linux distro (I think it was new because I just knew it. . It has a nice desktop interface. Well, there was no harm in trying out new linux distro because every linux distro gave you a new perspective of what the linux should be.

to find more info you could visit its website

http://www.earos.dk/

clipped from www.earos.dk