About linux file system structure

Hi friends in this article we shall talk about Linux operating system file system(Directory Structure). File system in Linux is categorized based on the based on nature of files or
directories.

Files are categorized into following types:  

/bin	user binaries
/sbin	system binaries
/etc	configuration files
/dev	device files
/proc	process files
/var	variable files
/tmp	temporary files
/usr	user programs
/home	home directory
/boot	boot loader files
/lib	library files
/opt	optional-add-on apps
/mnt	mount directory
/media	removable devices
/sv	service data

In Linux operating system  "/"  represents root directory which means it is a parent directory for Linux file system.

/bin: This directory contains binary executable s,  Common Linux commands you need
        to use in single-user modes are located under this directory.
Ex :   

/sbin:  This directory contains binary executable s, But  the linux commands located  
           under this directory are used typically by system administrator for system 
           maintenance purpose.
Ex :   

/etc:  This directory contains configuration files required by all programs ,This also   
         contains startup and shutdown shell scripts used to start/stop individual programs.
/Ex : 

  
/dev:  This directory contains device files and also contains files for handling removable 
          devices.
/Ex :  

  
   /proc:  This directory Contains information about system.This is a pseudo filesystem 
             process contains information about running process.
   /Ex :    

      

                                                                                       

/var: Variable means it contains variable length records. which means Content of the files         that are expected to grow can be found under this directory.
/Ex :  

   
                                                                                                                       

/tmp: Directory that contains temporary files created by system and users.Files under 
         this are get deleted when system rebooted.     
                 
/user: Contains binaries, libraries, documentation, and source-code for second level
          programs. It has also sub directories like bellow image.

/home: Home directories for all users to store their personal files.

/boot:  Contains boot loader related files like bellow image.

/lib    :   Contains library files that supports the binaries located under /bin and /sbin  

                                                                                                                                 
/opt  : opt stands for optional,Contains add-on applications from individual vendors.

/mnt : Temporary mount directory where sysadmins can mount filesystems.

/media :  Temporary mount directory for removable devices.

/srv: srv stands for service Contains server specific services related data.

                                                              
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