Quick links: C-Tricks HR Interview Que. Code Snippets C Programs C++ Programs Java Programs PHP Examples

Linux Operating System

Linux is a Unix like computer operating system, it is a free and open source for development & distribution. Linux Kernel is the defining component, and it was first released in 05 October 1991 by Linus Torvalds.

Linux Kernel
The Linux Kernel is a Unix like Kernel, It is widely used Kernel world wide. It handles everything in the operating system- to allocate space to the processes, to manage files, to allocate memory to the files, to manage the processes, to run/stop the processes. We can say Kernel is the hub of Operating System.

Sponsored Links

quick links to "LINUX TERMINAL COMMANDS..."

linux file hierarchy

A linux system contains the following file hierarchy

Main directorySub Dir1Sub dir2Sub dir3Description
/Known as root, It contains the Linux main directories.
/binIt contains all essential executables files of the linux system, that can used by the all linux system users(such as: ls,mount,chmod.. etc)
/bootIt contains linux booting related files, that allows to linux start up.
/devIt contains files realted to attached peripherals (such as: keyboard, camera etc)
/etcIt contains the administrator related commands and files (such as : passwd, .config files, group, inittab).
/etc/X11It contains the specific files for the configuration of X.
/etc/optIt contains the configuration files for the applications installed in /opt
/homeIt is the personal user directory, where user can create their directories
/libIt contains the shared libraries that are necessary for the system during booting process.
/mntIt contains the mount points of external devices.
/optIt contains packages of supplementary applications.
/rootIt contains the directories that are related to the root administrator.
/sbinIt contains the system binary files.
/tmpIt contains temporary files & directories.
/usrSecondary hierarchy
/usr/X11R6It is is reserved for the system X version 11 release 6.
/usr/X386Reserved for the X386 system files.
/usr/binIt contains the binaries of the commands.
/usr/includeIt conatins the C and C++ header files, that can further use in programming.
/usr/libIt conatins the library files.
/usr/localIt contains the local installed programs by the root.
/usr/local/binIt contains the binaries of local programs.
/usr/local/gamesIt contains the binaries of local games.
/usr/local/includeIt conatins the local C and C++ header files, that can further use in programming.
/usr/local/libIt contains the local shared libraries
/usr/local/sbinIt contains the local system binary files.
/usr/local/shareIt is an independent hierarchy
/usr/local/srcIt contains the local source code files.
/usr/sbinIt contains the binary files that are reserved for the system administrator.
/usr/shareIt contains the files that are reserved for architecture's non-dependent data.
/usr/srcIt contains the source code files.
/varIt contains the variable data
Solved programs

Sponsored Links

Most viewed pages

Featured posts
C Tips and Tricks

Keywords (like Linux, Java, Oracle etc) used in this website are the trademarks of their respective owners/company. This website is not affiliated to any company. The tutorials are designed by includehelp Team with the help of well known books and other online resources. These Tutorials are free for all, for learning purposes only. Enjoy learning:)
Copyright © 2015 - 2016. All Rights Reserved.