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intro unix/linux 08

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The document provides an overview of shells and their functions. It discusses how shells interpret commands, execute utilities by launching child processes, and customize functionality through variables and startup files. Key points include shells acting as an interface between the user and kernel by translating commands, child processes inheriting environments, and customizations like aliases, prompts, and startup files tailoring each shell.

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Lesson 8-Specifying Instructions to the Shell
Overview ,[object Object],[object Object],[object Object],[object Object],[object Object]
An Overview of Shell ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],An Overview of Shell
An Overview of Shell ,[object Object],[object Object],[object Object]
Execution of Commands in a Shell ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Execution of Commands in a Shell ,[object Object],[object Object],[object Object],[object Object],[object Object]
Interacting with the Shell ,[object Object],[object Object],[object Object],[object Object]
Communicating with the Shell ,[object Object],[object Object],[object Object],[object Object]
Communicating with the Shell ,[object Object],[object Object],[object Object]
[object Object],[object Object],Communicating with the Shell
Identifying Utilities for Output Redirection ,[object Object],[object Object],[object Object],[object Object]
Identifying Utilities in Pipelines ,[object Object],[object Object],[object Object],[object Object]
Identifying Utilities in Pipelines ,[object Object],[object Object],[object Object],[object Object]
Identifying Utilities in Pipelines ,[object Object],[object Object]
Starting Processes to Run Utilities ,[object Object],[object Object],[object Object]
Starting Processes to Run Utilities ,[object Object],[object Object]
Redirecting Input and Output ,[object Object],[object Object],[object Object]
Redirecting Input and Output ,[object Object],[object Object],[object Object],[object Object]
Redirecting Input and Output ,[object Object],[object Object],[object Object]
[object Object],[object Object],Redirecting Input and Output
Passing Arguments to Processes ,[object Object],[object Object],[object Object],[object Object]
Identifying Tokens on the Command-Line ,[object Object],[object Object],[object Object]
Identifying Tokens on the Command-Line ,[object Object],[object Object]
The Exit Code Status After a Utility Execution ,[object Object],[object Object],[object Object]
Using the Model to Interpret Command-Lines ,[object Object],[object Object],[object Object]
Changing the Behavior of a Command Execution ,[object Object],[object Object],[object Object]
Changing the Behavior of a Command Execution ,[object Object],[object Object],[object Object],[object Object]
Shell Command-Line Expansion ,[object Object],[object Object],[object Object]
Using Shell Characters to Expand Filenames ,[object Object],[object Object],[object Object]
Using Shell Characters to Expand Filenames ,[object Object],[object Object]
Using Shell Characters to Expand Filenames ,[object Object],[object Object],[object Object]
Creating and Using Local Variables ,[object Object],[object Object],[object Object]
Creating and Using Local Variables ,[object Object],[object Object],[object Object]
Passing Environment Variables to Child Processes ,[object Object],[object Object],[object Object],[object Object]
Passing Environment Variables to Child Processes ,[object Object],[object Object],[object Object]
Passing Environment Variables to Child Processes ,[object Object],[object Object],[object Object],[object Object]
Customizing the Functioning of the Shell ,[object Object],[object Object]
Using and Modifying the Search Path ,[object Object],[object Object],[object Object],[object Object]
Using and Modifying the Search Path ,[object Object],[object Object],[object Object]
Creating Personalized Shell Prompts ,[object Object],[object Object],[object Object]
Employing Advanced User Features ,[object Object],[object Object],[object Object],[object Object]
Employing Advanced User Features ,[object Object],[object Object],[object Object],[object Object]
Employing Advanced User Features ,[object Object],[object Object],[object Object],[object Object],[object Object]
Employing Advanced User Features ,[object Object],[object Object],[object Object]
Employing Advanced User Features ,[object Object],[object Object],[object Object],[object Object]
Summary ,[object Object],[object Object],[object Object]
Summary ,[object Object],[object Object],[object Object]
[object Object],[object Object],Summary

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