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Mastering Linux shell scripting : master the complexities of Bash shell scripting and unlock the power of shell for your enterprise /
Annotation
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Birmingham :
Packt Publishing,
2015.
|
| Colección: | Community experience distilled.
|
| Temas: | |
| Acceso en línea: | Texto completo (Requiere registro previo con correo institucional) |
Tabla de Contenidos:
- Cover ; Copyright; Credits; About the Author; About the Reviewer; www.PacktPub.com; Table of Contents; Preface; Chapter 1: What and Why of Scripting with Bash ; Bash vulnerabilities; The bash command hierarchy; Command type; Command PATH; Preparing text editors for scripting; Configuring vim; Configuring nano; Configuring gedit; Creating and executing scripts; Hello World!; Executing the script; Checking the exit status; Ensuring a unique name; Hello Dolly!; Running the script with arguments; The importance of correct quotes; Printing the script name; Debugging your scripts; Summary.
- Chapter 2: Creating Interactive Scripts Using echo with options; Basic script using read; Script comments; Enhancing scripts with read prompts; Limiting the number of entered characters; Controlling the visibility of entered text; Enhancing learning with simple scripts; Backing-up with scripts; Connecting to a server; Version 1
- ping; Version 2
- SSH; Version 3
- MySQL/MariaDB; Summary; Chapter 3: Conditions Attached ; Simple decision paths using command-line lists; Verifying user input with lists; Using the test shell builtin; Testing strings; Testing integers; Testing file types.
- Creating conditional statements using ifExtending if with else; More conditions with elif; Creating the backup2.sh using elif; Using case statements; Recipe
- building a front-end with grep; Summary; Chapter 4: Creating Code Snippets ; Abbreviations; Using code snippets; Bringing color to the terminal; Summary; Chapter 5: Alternative Syntax ; Recapping test; Testing files; Adding logic; Square brackets as not seen before; Providing parameter defaults; Variables; Special parameters; Setting defaults; When in doubt
- Quote!; Advanced test using [[; Whitespace; Other advanced features.
- Pattern matchingRegular expressions; Regular expression script; Arithmetic operations using ((; Simple math; Parameter manipulation; Standard arithmetic tests; Summary; Chapter 6: Iterating with Loops ; For loops; Controlling the loop; While loops and until loops; Reading input from files; Creating operator menus; Summary; Chapter 7: Creating Building Blocks with Functions ; Introducing functions; Passing parameters to functions; Returning values from functions; Using functions in menus; Summary; Chapter 8: Introducing sed ; Using grep to display text.
- Displaying received data on an interfaceDisplaying user account data; Listing the number of CPUs in a system; Parsing CSV files; The CSV file; Isolating catalog entries; Using regular expressions; Working with alternate spellings; How many words have four consecutive vowels?; RE anchors; Understanding the basics of sed; Substituting command; Editing the file; Summary; Chapter 9: Automating Apache Virtual Hosts ; Apache name-based Virtual Hosts; Creating the Virtual Hosts template; First steps; Isolating lines; sed script files; Automating Virtual Host creation.