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Unix Shell Scripting Basics

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Dr.Ravi
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UNIX Shell-Scripting Basics
Agenda ,[object Object],[object Object],[object Object],[object Object]
What is a shell? ,[object Object],▌
What is a shell? ,[object Object]
What is a shell? ,[object Object]
What is a shell? INPUT shell OUTPUT ERROR
What is a shell? ,[object Object],[object Object]
Bourne Shells ,[object Object],[object Object],Steve Bourne
Other Common Shells ,[object Object],[object Object],[object Object]
An aside: What do I mean by /bin ? ,[object Object],[object Object],[object Object]
An aside: What do I mean by /bin ? ,[object Object],[object Object],[object Object],[object Object],[object Object]
What is a Shell Script? ,[object Object],[object Object],[object Object]
What is a Shell Script? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What is a Shell Script? A Text File ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
An aside: Redirection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],0 1 2 INPUT env OUTPUT ERROR
What is a Shell Script? How To Run ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What is a Shell Script? What To Do ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What is a Shell Script? Executable ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What is a Shell Script? Running it ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Finding the program: PATH ,[object Object],[object Object],[object Object],[object Object]
Variables and the Environment ,[object Object],[object Object],[object Object],[object Object],[object Object]
An aside: Quoting ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Variables and the Environment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Welcome to Shell Scripting! Shebang! The Environment PATH Input, Output, and Error chmod
How to Learn ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Introduction to bash
Continuing Lines: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exit Status ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exit Status: exit ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: test ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: test ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: test ,[object Object],[object Object],[object Object],[object Object]
An aside: $(( )) for Math ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: if ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: if ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: if ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: for ,[object Object],[object Object],[object Object],[object Object]
Logic: for ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: for ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: for ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: C-style for ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: C-style for ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Logic: while ,[object Object],[object Object],[object Object],[object Object]
Logic: while ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Counters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Reusing Code: “Sourcing” ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Variable Manipulation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object]
Running Programs
Reasons for Running Programs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pipes ,[object Object],[object Object],[object Object],INPUT echo OUTPUT ERROR 0 1 2 INPUT wc OUTPUT ERROR 0 1 2 A Pipe!
Email Notification ,[object Object],[object Object],[object Object]
Dates ,[object Object],[object Object],[object Object],[object Object]
FTP the Hard Way ,[object Object],[object Object],[object Object],[object Object]
FTP with wget ,[object Object],[object Object]
FTP with curl ,[object Object],[object Object],[object Object]
Searching: grep ,[object Object],[object Object],[object Object],[object Object],[object Object]
Searching: find ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Searching: locate ,[object Object],[object Object],[object Object],[object Object]
Applied Shell Programming
Make Your Life Easier ,[object Object],[object Object],[object Object],[object Object],[object Object]
pushd/popd ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Monitoring processes ,[object Object],[object Object],[object Object],[object Object],[object Object]
“DOS” Mode Files ,[object Object],[object Object],[object Object]
sqlplus ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
sqlplus ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Passing Arguments ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
INB Job Submission Template ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Scheduling Jobs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
It's Over!
Other Questions? ,[object Object],[object Object],[object Object],[object Object]

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