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LINUX TUTORIAL

2

Table of Contents
1.

WHAT IS LINUX? .............................................................................................................................................................. 4
1.1.

History of UNIX .......................................................................................................................................................... 4

1.2.

History of LINUX ....................................................................................................................................................... 4

1.3.

Why LINUX/UNIX .................................................................................................................................................... 4

1.4.

Layers of LINUX/UNIX ........................................................................................................................................... 5

2.

GETTING STARTED ....................................................................................................................................................... 7

3.

LINUX COMMANDS ....................................................................................................................................................... 8
3.1.

Control Keys ................................................................................................................................................................ 8

3.2.

Getting Help ................................................................................................................................................................. 8

3.3.

LINUX Command Options ........................................................................................................................................ 9

3.4.

LINUX Commands ................................................................................................................................................... 10
3.4.1. Basic File Commands ........................................................................................................................................ 10
3.4.2. Display Commands ............................................................................................................................................ 16
3.4.3. File Permissions .................................................................................................................................................. 20
3.4.4. System Resource Commands ........................................................................................................................... 22
3.4.5 List of User Commands ..................................................................................................................................... 28
3.4.6 List of Disk Space Commands .......................................................................................................................... 31

4.

5.

FILE SYSTEM .................................................................................................................................................................. 32
4.1.

Directories in LINUX ............................................................................................................................................... 33

4.2.

Commands in File System ....................................................................................................................................... 34

4.3.

Commands for Showning File Details .................................................................................................................. 36

SHELL ................................................................................................................................................................................. 44
5.1.

Built-in Commands ................................................................................................................................................... 44

5.2.

Special Commands ................................................................................................................................................... 44
5.2.1Piping ....................................................................................................................................................................... 45
5.2.2 Command Seperator ............................................................................................................................................. 45
5.2.3Alias ......................................................................................................................................................................... 46

07/10/2009

Linux Tutorial 1.0.doc