Linux Shell Scripting

2 Days

Description

This class is designed to provide the skills necessary to automate tasks on a Unix or Linux system. Systems Administrators and Developers alike can avoid errors, save time and money by replacing repetitive work patterns with shell scripts. Care has been taken to present the class in a format that benefits all students, with or without previous programming experience. Guru Labs believes that the best way to learn shell scripting is writing shell scripts. For this reason, lab time is emphasized. Early labs present the scripting process step by step, while later labs are presented in a challenge format. While official solutions to each lab task are provided, students are encouraged to create their own before examining the solution. In this way, more experienced students are challenged without overwhelming the less experienced.

Current Version: F00

Supported Distributions:

  • Red Hat Enterprise Linux 7
  • SUSE Linux Enterprise 12

Upcoming Classes

Virtual Classroom Live
November 20, 2017

$1,000.00
2 Days    8:00am MT - 4:00pm MT
view class details and enroll
Private Training Available
No date scheduled, don’t see a date that works for you or looking for a private training event, please call 651-905-3729 or submit a request for further information here.
request a private session or new date

Course Overview

  • INTRODUCTION TO THE SHELL
    1. Shell Script Strengths and Weaknesses
    2. Shells
    3. Switching User Contexts
    4. Example Shell Script
    5. Shell and Environment Variables
    6. Key Environment Variables
    7. Which and Type
    8. General Quoting Rules
    9. Nesting Commands
    10. Help from Commands and Documentation
    11. whereis
    12. Getting Help Within the Graphical Desktop
    13. Getting Help with man & info
    LAB TASKS
    1. Shell Variables
    2. Shell Meta-Characters
    3. Command Substitution
  • SHELL SCRIPTING BASICS
    1. Positional Parameters
    2. Input & Output
    3. printf
    4. alias
    5. Functions
    6. Colors in Scripts
    7. Custom Bash Prompts
    LAB TASKS
    1. Aliases
    2. Bash Login Scripts
    3. Create "userinfo" and "sysinfo" functions
  • WORKING WITH FILES
    1. Communication Channels
    2. File Redirection
    3. Piping Commands Together
    4. Doing Math
    5. Filesystem Structures
    6. Determining Disk Usage With df and du
    7. cron
    8. The crontab Command
    9. crontab Format
    10. /etc/cron.*/ Directories
    11. Sending Email with mailx
    LAB TASKS
    1. Disk and Filesystem Usage
    2. Redirection and Pipes
  • REGULAR EXPRESSIONS
    1. Searching Inside Files
    2. Regular Expression Overview
    3. Regular Expressions
    4. RE Character Classes
    5. Regex Quantifiers
    6. RE Parenthesis
    7. The Streaming Editor
    LAB TASKS
    1. Pattern Matching with Regular Expressions
    2. Extended Regular Expressions
    3. Using Regular Expressions With sed
  • BRANCHING AND LOOPING
    1. Exit Status
    2. Comparisons with test
    3. Conditional Statements
    4. Flow Control: case
    5. Flow Control: while and until Loops
    6. The for Loop
    7. Flow Control: select
    LAB TASKS
    1. Reporting User Statistics
    2. Monitoring Filesystem Usage
  • DATA MUNGING
    1. Text Processing with Awk
    2. Text Sorting
    3. Duplicate Removal Utility
    4. Extracting Columns of Text
    LAB TASKS
    1. Create "rmhost" function
    2. Create "showenv" function
    3. Parsing Mail Server Logs
    4. Fixing Incorrect Files
  • SECURITY, WHITESPACE AND OTHER GOTCHAS
    1. Gotcha: Quoting Variables
    2. Gotcha: Locales
    3. Gotchas: Maximum Command Length
    4. Gotcha: Whitespace in for Loops
    5. Reading Files with while
    6. Gotcha: $IFS
    7. Gotcha: Printing in .bashrc
    8. Gotcha: Aliases
    LAB TASKS
    1. Renaming MP3 Files
    2. Split and Display $PATH
    3. A tar-based Backup
  • CHALLENGE
    1. Apache Configuration Files
    2. httpd.conf – VirtualHost Configuration
    LAB TASKS
    1. Automated Virtual Host Provisioning
  • EMACS
    1. Emacs
    2. The Emacs Interface
    3. Basic Emacs
    4. More Emacs Commands
    LAB TASKS
    1. Text Editing with Emacs
  • THE SECURE SHELL (SSH)
    1. ssh and sshd Configuration
    2. Accessing Remote Shells
    3. Transferring Files
    4. SSH Key Management

Upcoming Classes

Virtual Classroom Live
November 20, 2017

$1,000.00
2 Days    8:00am MT - 4:00pm MT
view class details and enroll
Private Training Available
No date scheduled, don’t see a date that works for you or looking for a private training event, please call 651-905-3729 or submit a request for further information here.
request a private session or new date

Prerequisites

Solid understanding of Unix-based systems and proficiency on the Unix or Linux command line.

Upcoming Classes

Virtual Classroom Live
November 20, 2017

$1,000.00
2 Days    8:00am MT - 4:00pm MT
view class details and enroll
Private Training Available
No date scheduled, don’t see a date that works for you or looking for a private training event, please call 651-905-3729 or submit a request for further information here.
request a private session or new date