Introduction to Shell Scripting

ITS251 - Introduction to Shell Scripting

Course description
The Introduction to Shell Scripting course will teach you how to use Shell commands and constructs to enhance or automate system administration activities. Both Unix and Linux provide multiple shell environments. While this course focuses on creating shell scripts in the Bourne Again Shell (the Bash Shell) these skills are easily transferable to other shell environments. Students will explore shell scripting strategies, methodology and environments. Students will create several working Bash shell scripts.

Who should attend
System administrators, analysts or programmers who need to write scripts to enhance the operating system environment.

Prerequisites
Basic working knowledge of UNIX or Linux commands.
Course Number ITS250 - Linux/UNIX Fundamentals course is recommended.

What you will learn

• Introduction to Shell Scripting
  The Command Line and Basic Commands, redirecting input and output, making files executable, identifying the version of a shell
  Using scripting tools
  Creating simple batch files, Using metacharacters, searching for metacharacters, using text editors Variables
  Identifying Built-in variables, System defined variables, User defined variables, using quotations, reading user input
  Conditional Constructs
  Determining exit status, using the test command, using if/then/else constructs, using the case command Looping
  Creating loop conditions using for commands, while commands and until commands Functions
  Describe the difference between functions and scripts, creating and calling functions