Unix Fundamentals Training

UNIX Fundamentals (Intro)

This course is designed for end-users, system operators and programmers who are new to the Unix environment. This class is applicable for any flavor of Unix.

Course Outline

Introduction

• Course objectives
• Course overview
• Suggested references and readings

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 - 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
• 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

Text Handling Utilities

• The grep utility
• The tr utility
• The cut, paste, sort utility
• The wc utility
• The diff utility
• The lp utility

File System Security

• File & Directory permissions

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
• elm - electronic mail
• Sending mail with elm
• Reading mail with elm
• Customizing elm
• elmrc example

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

Introduction to Shell Programming

• Shell programming objectives
• Overview
• Suggested references and reading

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 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

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