Introduction to UNIX

Course Length - 3 Days

Course Description This three-day hands-on course provides a comprehensive introduction to the full range of UNIX user commands and utilities. Students will also develop shell programming and vi editing skills.

You Will Learn How To Upon successful completion of this course, students will be able to: Start up and successfully log in to any UNIX environment Search and display online documentation Interact with UNIX via the command line interface Use links and directories to navigate across the UNIX file system Create and edit files using vi, plus customize the vi environment Protect files and directories from unauthorized access Find files, applications and utilities by date, name, owner, type or other criteria Customize the shell to efficiently use command substitutions and history Process data with filters, pipes and redirection Write batch and interactive shell scripts to automate tasks Perform simple administration, such as backing up and restoring personal files Perform a safe shutdown of any UNIX computer

Course Benefits Students will quickly learn how to efficiently UNIX commands in an interactive environment.

Course Prerequisites This course assumes students have no previous knowledge of UNIX. Basic computer experience at the user level is expected.

Who Should Attend? This course is valuable for anyone who is new to the UNIX environment.

Hands-On Exercises: Throughout this course, students perform a series of extensive hands-on exercises, including: Using the online manual to obtain information about commands Copy, delete, move and display files Copy, delete, move and navigate across directories Simple and sophisticated file editing with vi Customizing vi setting by editing the .exrc file Finding strings in files with grep Manipulaing and comparing file contents with cut, paste, and diff Setting and changing permission modes with chmod, and umask Finding files Obtaining process status and changing status priorities Building complex commands with wildcards, pipes and redirection Customizing the shell Writing shell scripts with for and while loops Writing shell scripts with case constructs Making, editing, and deleting a crontab entry Using tar to back up files


Course Outline:
Getting Started
UNIX operating system features Flavors of UNIX Brief History of UNIX Logging in and using the system User names and passwords Command line syntax: commands, arguments, whitespace, options Accessing and searching the on-line reference manual A Few Commands
Files
What is a file Wildcards File Properties The ls Command Displaying files Copy, move and remove files
Directories
The hierarchical UNIX directory structure File Types Directories and their contents Relative vs. absolute paths Copying Files into Directories
Editing with vi
Why Learn vi The vi Temporary File Command Mode and Insert Mode Moving the Cursor Scrolling Searching Copy and Paste Reading in external files Advanced vi Tricks Customizing .exrc File
Text Handling Utilities
Word count grep Sorting files File comparison Printing
File System Security
Basic File Permissions Changing Permission Modes The umask Command Why directories need execute permission
File System Management
The find Utility Disk Usage CPU Usage
Processes
What are daemons and processes The ps utility Background commands (&) Killing processes Signals
Redirection
Filters and Streams Standard I/O Redirection and pipes Appending Output The tee Command
Using the Shell
Which Shell To Use Determining Which Shell Is Running Changing finger information with the chfn utility Changing The Shell Shell Variables Environment Variables The history Command What Is A Shell Script
Shell Scripting
Exit Status Setting A Variable Special Variable Test Conditions For and While Loops The case Construct Scripts With Arguments Reading In Variables Subshells
Personal System Administration
Logging In As Root Difference between su and su - System Start Up System Shutdown Making your own crontab entry Compressing files Backing up files with tar The cpio Command

Introduction to UNIX

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