UNIX Fundamentals

This 4-day course provides a comprehensive introduction to the full range of UNIX user commands and utilities. Students will develop shell programming and vi editing skills.

Getting Started

• What is UNIX?
• A Brief History of UNIX
• Logging In
• Logging Out
• Try a Few More Commands
• Changing Your Password
• Using On-line Manuals

The File System - Files

• What is a File?
• The ls Command
• The cat Command
• The more and pg Commands
• The head and tail Commands
• The cp Command
• The mv Command
• The rm Command
• File names

The File System - Directories

• Hierarchical File System
• Pathnames
• The pwd Command - Print Working Directory
• The cd Command - Change Directory
• The mkdir Command - Make Directories
• The rmdir Command - Remove Directories
• The cp Command (again) - Copy Files
• Two useful directory names - . and ..

Editing With vi

• What is vi?
• The vi Buffering Process
• Command Mode and Insert Mode
• Modes Diagram
• Getting Started
• Moving the Cursor Around
• Inserting Text
• Deleting a Character or Line
• Undo Last Command
• Opening a New Line
• Save Your Work or Abort the Session
• Review of vi Commands

More Editing With VI

• Scrolling the Buffer
• Cursor Motion Commands - w, W, b, B, e, E
• Cursor Motion Commands - $, ^, 0, G
• Cursor Motion Commands - f, t, F, T
• Delete Operator - d
• Change Operator - c
• Yank Operator - y
• Put Commands - p, P
• Searching For a Pattern - /, n, N, ?
• The join Command
• The file Command - :f
• Edit file Command - :e
• Cut and Paste Between Files
• Read file Command - :r
• Set options Command
• Set options Command - .exrc file

Personal Utilities

• The date Utility
• The bc Utility
• The expr Utility
• The cal Utility
• The news Utility
• The id Utility
• The uname Utility
• The finger Utility
• The script Utility
• The clear Utility
• Appendix: The at and crontab Utilities

Text Handling Utilities

• The grep Utility
• The tr Utility
• The cut Utility
• The paste Utility
• The sort Utility
• The wc Utility
• The diff Utility
• The lp Utility

File System Security

• File Permissions
• The chmod Utility
• Directory Permissions
• The umask Command

File System Management Utilities

• The find Utility
• The df Utility
• The du Utility
• Compressing Files
• The ln Utility
• The ulimit Utility
• The tar Utility

Communication Utilities

• The write and talk Utilities
• The mesg Utility
• Mail Overview
• The mail Utility
• The mailx Utility

Using the Shell

• What is a Shell?
• Which Shell?
• The Command Line
• Standard Input, Standard Output and Standard Error
• Using Default Standard In and Standard Output
• I/O Redirection
• Appending Output of a File
• Pipes
• The tee Utility

Filename Generation

• Filename Generation
• The ? special Character
• The * special Character
• The [ ] special Characters
• The ! special Characters

UNIX Processes

• What is a Process?
• Process Structure
• The ps Utility
• Options to the ps Utility
• Background Commands (&)
• Killing Background Processes
• Redirecting the Standard Error

Shell Programming Concepts

• What is a Shell?
• What is a Shell Script?
• Why Use Shell Scripts?

Flow Control

• The Exit Status of Commands
• Command Line Examples
• The test Command
• The if-then-else Construct
• The elif Construct
• A loop Example

Variables

• User Created Variables
• The read Command
• The Shell Environment
• The export Command
• Sub-shells
• Command Substitution
• Quoting Mechanisms
• Assigning Variables - Summary

Special Variables

• Command Line Arguments
• $# - Number of Arguments
• The shift Command
• $* - All Arguments
• $$ - PID of Shell

More Flow Control

• The for Loop
• The while Loop
• The Case Construct

Appendix: Korn shell features

• Viewing your Command History
• Editing and Re-executing Commands
• Aliases
• End-users and programmers who are new to the UNIX environment.

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End-users and programmers who are new to the UNIX environment.