
Solaris Korn Shell Programming
Overview
This Solaris Korn Shell Programming training course is designed to give delegates practical experience in developing and writing shell scripts. Most of the built-in shell commands are introduced together with the main program control structures. The course also gives practical experience using a range of Solaris tools to manipulate text and incorporate into Solaris shell scripts.
Prerequisites
The Solaris Korn Shell Programming course assumes knowledge of the Solaris Operating System to the level covered in the Solaris Introduction Course. Some programming experience may also prove advantageous.
Objectives
To provide the skills needed to develop and customise shell programs and to make effective use of a wide range of standard Solaris programming and development tools.
Outline
Course Contents - DAY 1
Course Introduction
- Administration and Course Materials
- Course Structure and Agenda
- Delegate and Trainer Introductions
Session 1: UNIX COMMAND REVIEW
- Basic UNIX commands
- Filename generation characters
- Redirection and pipes
Session 2: GETTING STARTED
- What is a shell script?
- Development guidelines
- Creating and editing shell scripts
- Naming and storing shell scripts
- Executing shell scripts
- Exercise: Create and run a simple shellscript
Session 3: USING VARIABLES
- Environment variables
- Local variables
- Assigning values to variables
- Accessing variable values
- Using quotes
- Delimiting variable names
- echo control sequences
- Exercises: Use variables in shellscripts
Session 4: INTEGER ARITHMETIC
- Using the expr command
- Using the (( )) notation
- Exercises: Use integer arithmetic in shellscripts
Session 5: HANDLING RUN TIME INPUT
- The read command
- Command line arguments and related variables
- Exercise: Writing an interactive shell script
Session 6: CONDITION TESTING
- The if-then-elif-else statement
- String tests
- Integer tests
- Filename tests
- Other test notations
- Default and substitute variables
- Exit status codes
- Counting characters
- Testing for numeric input
- Exercise: Add validation to previous scripts
Course Contents - DAY 2
Session 7: LOOP CONSTRUCTS
- The while loop
- The until loop
- The while true and until false loops
- The for loop
- Loop control commands
- Exercises: Enhance the previously written scripts with loop constructs
Session 8: MULTI-BRANCH DECISIONS
- The case statement
- Patterns and actions
- Menu driven applications
- Exercise: Develop and write a menu system
Session 9: FUNCTIONS
- What is a function?
- Function syntax
- Exercises: Create and use functions
Session 10: INTERRUPT HANDLING
- Interrupt signals
- The trap command
- Abnormal termination of scripts
- Exercise: Adding traps to the menu script
Session 11: ADDITIONAL FEATURES
- The exec command
- The includes notation
- Arrays
- Here Documents
- Exercise: Enhance scripts
Course Contents - DAY 3
Session 12: BACKUP AND RESTORE UTILITIES
- The tar command
- Compression utilities gzip, bzip2, zip and compress
- Exercise: Backing up and restoring files using tar
- Exercises: Compressing files
Session 13: BACKGROUND JOB SCHEDULING
- Scheduling jobs with the cron command
- Scheduling jobs with the at command
- Exercises: Running background jobs
Session 14: COMMANDS FOR COMPARING FILES
- Compare two files with the cmp command
- Compare two files with the comm command
- Compare two files with the diff and sdiff commands
- Compare large files with the bdiff command
- Exercises: Identifying file differences
Session 15: SPLITTING FILES
- The split and csplit commands
- Exercises: Splitting files
Course Contents - DAY 4
Session 16: IDENTIFYING AND TRANSLATING CHARACTERS
- od - octal dump
- Use cat to display non-printing characters
- The expand and unexpand commands to convert between tab and space characters
- The tr command for character translation
- Exercises: Translating characters with tr
Session 17: REGULAR EXPRESSION NOTATION REVIEW
- Standard regular expressions
- Extended regular expressions
Session 18 THE STREAM EDITOR - sed
- sed command line syntax
- sed command processing
- Pattern space
- sed addresses
- sed commands
- Hold and get functions
- Advanced flow control
- Exercises: Text processing with sed
Session 19: INTRODUCTION TO THE PATTERN SCANNING UTILITY - awk
- Introduction and command line syntax
- The awk program structure
- Operators
- Simple patterns
- Extended patterns
- Special patterns (BEGIN and END)
- Program variables: Built-in variables, User defined variables, Arrays
- Mathematical operators
- Displaying output with print and printf
- Exercises: Create awk scripts to extract selected data from a file and generate reports
Course Contents - DAY 5
Session 20: awk PROGRAM CONTROL STRUCTURES
- Program control structures
- The if construct
- The while and do ... while constructs
- The basic for construct
- Associative array handling
- Functions: Mathematical and string functions, The system function, The getline function, User defined functions
- Exercises: Create an awk script using an program control structures and arrays
Session 21: awk DEBUGGING AWK SCRIPTS
- Responding to Syntax errors
- Responding to Logical errors
Session 22: MISCELLANEOUS TOOLS
- bc (calculator)
- fuser (testing for files in use)
- getops (checking options passed to shell scripts)
- printf (formatting screen output)
- logger (script logging)
- xargs (generating arguments for a command)
- eval (re-evaluating variables)
- Exercises: Using tools within a shell script