This is a hands-on, instructor-led Korn Shell Training course delivered on-site by instructor Leor Zolman. For those already familiar with Unix fundamentals, this course teaches shell scripting: the primary process-control mechanism for Unix and the glue that binds software tools together. The course is taught using the Korn shell, the contemporary de-facto standard shell for System V Unix.

Introduction and Review of Unix Basics

• Command syntax
• Permissions
• Processes
• Wildcards

Redirection and Pipes

Creating and Executing Scripts

The Shell Environment

• Assigning and accessing variables
• Built-in variables

Tools of the Trade

• Extracting text with cut
• Joining columns with paste
• Transliterating characters with tr
• Eliminating duplications with uniq
• Batch processing with at
• Periodic Processing with cron

Quoting

• Single and double quotes
• Command substitution

Reading Input and Performing Arithmetic

• Positional parameters
• Reading user input interactively
• Displaying output
• Arithmetic on shell variables

Conditional Testing

• Exit status
• The test command
• String, integer and file test operators
• The if command and its variations
• The case statement
• The select statement

Looping Constructs

• The for loop
• The while/until loops
• Controlling loops with break and continue

Miscellaneous features

• Arrays
• Setting options in the Korn shell
• Aliases
• Command Line history
• Job Control
• Functions
• Signal Handling

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