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Shell Programming
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Customize your working environment for supercharged productivity with KornShell (ksh) and BASH shell (bash) — powerful command-interpreting languages for Linux, UNIX, and Mac OS. In this Shell programming training course, you gain the skills to write reusable, robust shell scripts, extend your user environment, and automate complex administrative tasks.
You Will Learn How To
- Write Bash and KornShell scripts for improved productivity
- Integrate arrays, functions, pattern matching, I/O, branches, loops, and variables
- Improve speed with multifile handling and string manipulations
- Create and reuse function libraries
Important Course Information
Recommended Experience:
- User-level UNIX commands
- Simple file editing with basic text, or GUI-based, editor
- X Window System and basic UNIX networking
Software:
- This course uses Red Hat Enterprise Linux
- Concepts taught are applicable to all Linux distributions
Course Outline
- Introduction and Overview
- Benefits of KornShell and Bash vs. other shells
- Differences between bash, ksh88 and ksh93
- Integrating scripts with external command-line tools
- Bash and KornShell Scripting Fundamentals
Shell script elements
- Commands and comments
- Defining exit values
Conditional program execution
- Applying if and case statements
- Simplifying if logic with elif
Program loops and iteration
- Conditional looping with while and until
- Listing for loops
Testing files and directories
- Analyzing attributes
- Checking file size and contents
Strings and patterns using [[ ]]
- Comparing strings
- Verifying the existence of a string
- Pattern matching and special characters
Debugging
- Redirecting standard error
- set commands for debugging
- Storing and Accessing Data
Positional parameters
- Passing and accessing parameters
- Manipulating parameters as groups
Shell variables
- Defining environment and local variables
- Specifying default values and error conditions
Arrays
- Creating and indexing arrays
- Processing array contents with special variables
- Processing Data
Manipulating strings
- Extracting substrings
- Determining string length
Mathematics
- Arithmetic for and while loops
- Writing mathematical expressions: (( )), $(( )) and let
- Modular Programming with Functions
Function basics
- Functions vs. scripts
- Parameters and variables
Creating a function library
- Finding your library with PATH
- Dot . and source commands
- Interacting with the Outside World
Manipulating files and redirecting data
- Scripting file and directory management
- Unraveling the secrets of exec: opening and closing multiple files
Interacting with running processes
- Handling errors
- Processing external events
- Handling and sending signals: trap and kill
Accessing network servers
- Connecting to a network server
- Exchanging data with a network server
- Creating "Production Quality" Scripts
Ensuring environmental control
- Checking and modifying environment variables
- Using getopts to process command-line options
Handling user actions
- Accepting command-line arguments
- Employing select to create a menu interface
- Processing keyboard input
Convenient Ways to Attend This Instructor-Led Course
Hassle-Free Enrollment: No advance payment required to reserve your seat.
Tuition due 30 days after you attend your course.
In the Classroom
Live, Online
Private Team Training
In the Classroom — OR — Live, Online
Tuition — Standard: $2650 Government: $2355
Feb 27 - Mar 1
(
3 Days)
9:00 AM - 4:30 PM EST
New York / Online (AnyWare)
Reserve Your Seat
Jul 10 - 12
(
3 Days)
9:00 AM - 4:30 PM EDT
Herndon, VA / Online (AnyWare)
Reserve Your Seat
Aug 28 - 30
(
3 Days)
9:00 AM - 4:30 PM EDT
New York / Online (AnyWare)
Reserve Your Seat
Dec 18 - 20
(
3 Days)
9:00 AM - 4:30 PM EST
Herndon, VA / Online (AnyWare)
Reserve Your Seat
Guaranteed to Run
When you see the "Guaranteed to Run" icon next to a course event, you can rest assured that your course event — date, time, location — will run. Guaranteed.Private Team Training
Enrolling at least 3 people in this course? Consider bringing this (or any course that can be custom designed) to your preferred location as a private team training.
For details, call 1-888-843-8733 or Click Here »
Tuition
Standard
Government
In Classroom or
Online
Standard
$2650
Government
$2355
Private Team Training
Course Tuition Includes:
Training Hours
Standard Course Hours: 9:00 am – 4:30 pm
*Informal discussion with instructor about your projects or areas of special interest: 4:30 pm – 5:30 pm
Enhance Your Credentials with Professional Certification
Learning Tree's comprehensive training and exam preparation guarantees that you will gain the knowledge and confidence to achieve professional certification and advance your career.
Earn 17 Credits from NASBA
This course qualifies for 17 CPE credits from the National Association of State Boards of Accountancy CPE program. NOTE: Only live, in-class attendance qualifies for NASBA CPEs. Read more ...