Linux Shell Scripting

The Linux Essentials is primarily intended for IT professionals who like to understand the essentials of the Linux possess a strong foundation and expertise in selling and implementing Oracle Linux solutions. This Linux Essentials course differentiates candidates in the marketplace by providing a competitive edge through proven expertise. Up-to-date training and field experience are recommended.

Course Contents
Intoduction to Unix/linux

• • What is Unix ?
  • Unix Architecture:
  • System Bootup:
  • Login Unix:
  • To log in:
  • Change Password:
  • Listing Directories and Files:
  • Who Are You?
  • Who is Logged In?
  • Logging Out:
  • To log out:
  • System Shutdown:

Unix File Management

• • Listing Files:
  • Meta Characters:
  • Hidden Files:
  • Creating Files:
  • Editing Files:
  • Display Content of a File:
  • Counting Words in a File:
  • Copying Files:
  • Renaming Files:
  • Deleting Files:
  • Standard Unix Streams:

Unix Directories

• • Home Directory:
  • Absolute/Relative Pathnames:
  • Listing Directories:
  • Creating Directories:
  • Creating Parent Directories:
  • Removing Directories:
  • Changing Directories:
  • Renaming Directories:
  • The directories (dot) and (dot dot)
    Unix File Permission Setup
  • The Permission Indicators:
  • File Access Modes:
  • 1. Read:
  • 2. Write:
  • 3. Execute:
  • Directory Access Modes:
  • 1. Read:
  • 2. Write:
  • 3. Execute:
  • Changing Permissions:
  • Using chmod in Symbolic Mode:
  • Using chmod with Absolute Permissions:
  • Changing Owners and Groups:
  • Changing Ownership:
  • Changing Group Ownership:
  • SUID and SGID File Permission:

Unix Environment

• • The profile File:
  • Setting the Terminal Type:
  • Setting the PATH:
  • PS1 and PS2 Variables:
  • Environment Variables:

Unix Pipes and Filters

• • The grep Command:
  • The sort Command:
  • The pg and more Commands:

Unix Processes Management

• • Starting a Process:
  • Foreground Processes:
  • Background Processes:
  • Listing Running Processes:
  • Stopping Processes:
  • Parent and Child Processes:
  • Zombie and Orphan Processes:
  • Daemon Processes:
  • The top Command:
  • Job ID Versus Process ID:

Unix Communication

• • The ping Utility:
  • The ftp Utility:
  • The telnet Utility:
  • The finger Utility:

Unix – The vi Editor

• • Starting the vi Editor:
  • Operation Modes:
  • Getting Out of vi:
  • Moving within a File:
  • Control Commands:
  • Editing Files:
  • Deleting Characters:
  • Change Commands:
  • Copy and Past Commands:
  • Advanced Commands:
  • Word and Character Searching:
  • Set Commands:
  • Running Commands:
  • Replacing Text:
  • IMPORTANT:

Unix- What is Shell

• • Shell Prompt:
  • Shell Types:
  • Shell Scripts:
  • Example Script:
  • Shell Comments:

Unix- Using Variables

• • Variable Names:
  • Defining Variables:
  • Accessing Values:
  • Read-only Variables:
  • Unsetting Variables:
  • Variable Types:

Unix-Special Variables

• • Command-Line Arguments:
  • Special Parameters $* and $@:
  • Exit Status:
  • Unix – Using Arrays
  • Defining Array Values:
  • Accessing Array Values:

Unix – Basic Operators

• • Arithmetic Operators:
  • Relational Operators:
  • Boolean Operators:
  • String Operators:
  • File Test Operators:
  • C Shell Operators:
  • Arithmatic and Logical Operators:
  • File Test Operators:
  • Korn Shell Operators:
  • Arithmatic and Logical Operators:
  • File Test Operators:

Unix – Decision Making

• • The if…else statements:
  • if…fi statement
  • if…else…fi statement
  • if…elif…else…fi statement

Unix – Shell Loops

• • The while loop
  • The for loop
  • The until loop
  • The select loop
  • Nesting Loops:
  • Nesting while Loops:

Unix – Loop Control

• • The infinite Loop:
  • The break statement:
  • The continue statement:

Unix – Shell Substitutions

• What is Substitution?
• Command Substitution:
• Variable Substitution:
• Unix – IO Redirections
• Output Redirection:
• Input Redirection:
• Here Document:
• Discard the output:
• Redirection Commands:
• Function Call from Prompt:
• Unix – Manpage Help