LINUX BEGINNERS

WHAT IS LINUX?

• Linux Linux is a free Unix-type operating system for computer devices.
• Linux is Freely available to everyone.

HOW TO UNDERSTAND FILES AND FOLDER?

• Everyone In The Linux Is File.
• Folders are used to Organize the Files.
• The lowest possible folder is root / where you will find the user homes called /home/.

/

/home

/home/parent

/home/parent/child

NOTE: Another name of Folder is Directory.

ROOT FOLDER CONTAINS THE FOLLOWING:

• /bin - use by all users.
• /boot - used for system start up (having boot loader files).
• /dev -  Device files, links to your hardware devices.
• /etc - having system configuration files.
• /home - Save your personnel files.
• /lib - Library and Kernel modulus.
• /mnt - use to mount CDRom.
• /opt -  used for application software packages.
• /usr - used to store the user files.
• /var - used for spool directories  and Temporary files.
• /proc - Storing the System information.

HOW TO UNDERSTAND USERS AND PERMISSION?
There are three types of users in the linux:
1.User,
2.Group,
3.Others.
There are three types of Permissions in the linux:
1.Read,
2.Write,
3.Execute.
HOW TO OPEN TERMINAL WINDOW?
GNOME:

•             Menu--> System--> Terminal.

KDE:

•             K--> System--> Konsoll.

XTERM:

•             Ctrl+Alt+F2 -- F6 Return To The Old Window Press Ctrl+Alt+F1.