- Linux Shell Scripting Essentials
- Table of Contents
- Linux Shell Scripting Essentials
- Credits
- About the Author
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. The Beginning of the Scripting Journey
- 2. Getting Hands-on with I/O, Redirection Pipes, and Filters
- Standard I/O and error streams
- Redirecting the standard I/O and error streams
- Pipe and pipelines – connecting commands
- Regular expressions
- Filtering an output using grep
- Editing output using sed
- Duplicating a stream using tee
- Sorting and finding unique text
- Character-based translation using tr
- Filtering based on lines—head and tail
- The Cut-based selection
- Summary
- 3. Effective Script Writing
- Exiting from scripts and exit codes
- Testing expressions with a test
- Using conditional statements with if and else
- Indexed arrays and associative arrays
- Looping around with for
- The select, while, and until loops
- Switch to my choice
- Passing stdout as a parameter using xargs
- Using functions and positional parameters
- Alias
- pushd and popd
- Summary
- 4. Modularizing and Debugging
- 5. Customizing the Environment
- 6. Working with Files
- 7. Welcome to the Processes
- 8. Scheduling Tasks and Embedding Languages in Scripts
- Index
-
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