2013
lynda.com
Scott Simpson
1h18m
English

Bash, or the Bourne Again Shell, is a widely popular command-line interpreter for administration and programming tasks. It's also the default option on Mac OS X and Linux. But Bash is different than most scripting languages. That's why Scott Simpson spends some time in this course running you through the syntax—introducing variables, numbers, and control structures—so you can start writing scripts right away. He shows you how to wrap up multiline operations in one file, implement flow control, and interact with users to get input. Plus, he offers challenges along the way that allow you to put what you've learned to the test.
Topics include:
What is Bash?
Managing output with grep, awk, and cut
Understanding Bash script syntax
Creating a basic Bash script
Displaying text with "echo"
Working with numbers, strings, and arrays
Reading and writing text files
Working with loops
Using functions
Getting user input during execution
Ensuring a response

Introduction
Welcome
What you need to know before continuing
Using the exercise files
1. Working with the Command Line
What's Bash?
Reviewing common Bash commands
Tilde and brace expansion
Changing where things go with pipes and redirection
Manipulating output with grep, awk, and cut
Understanding Bash script syntax
Creating a basic Bash script
2. Building Bash Scripts
Displaying text with echo
Working with variables
Command substitution
Working with numbers
Comparing values
Working with strings
Coloring and styling text
Exploring some handy helpers: date and printf
Working with arrays
Reading and writing text files
Using here documents
Challenge: Make a script that generates a system report
Solution: Make a script that generates a system report
3. Control Structures
Testing truth conditions with the if keyword
Working with while and until loops
Introducing for loops
Selecting behavior using case
Using functions
4. Interacting with the User
Working with arguments
Working with flags
Getting input during execution
Ensuring a response
Challenge: Make a script that uses input
Solution: Make a script that uses input
Conclusion
Next steps

Download File Size:131.45 MB

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