After completing Shell Programming, the user should be able to:
 

	Write basic Bourne, Korn and C shell programs
	Add statements to perform commands conditionally
	Build repetitions into a program
	Use functions for programming efficiency
	Handle unexpected signals from executing programs
	Select a shell language for writing shell scripts

Bourne Shell Programming
Uses the Bourne shell to teach the basics of shell programming.  Shows how to use the common tools supplied with UNIX to create more powerful tools specific to the tasks users need to perform.
 

	Passing arguments within shell programs
	Using conditional tests for decision making
	Building in loops for repetitive actions
	Utilizing structured programming with functions
	Debugging programs by tracing output

Korn Shell Programming
Reviews the Korn shell enhancements that apply to shell script writing.
 

	Comparing Bourne and Korn shell conditional expressions
	Declaring Korn shell functions
	The Korn shell's extended variable support
	Using arithmetic expressions in Korn shell programs
	Writing programs that include the select statement

C Shell Programming
Looks mainly at the shell statements for flow control: the conditional statements if and switch and the loop control statements while and foreach.
 

	Some of the unique features of the C shell
	Using the @ command to evaluate arithmetic expressions
	Writing C shell programs that include looping structures
	Including the switch and source statements in your programs

Using Shell Scripts
Presents guidelines for choosing a shell for writing scripts for personal use and for public consumption.
 

	Writing scripts for personal use
	Writing scripts for public consumption
	Selecting a shell language based on project requirements

This course is distributed with the UNIX Glossary.