Fundamentals of shell script - AOUG

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SHELL SCRIPT FOR DBA
Rodrigo Mufalani
Principal DB Architect
Oracle Certified Master (OCM)
Oracle ACE Member
eProssed - Luxembourg

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BOUT ME
Principal DB Architect at eProseed Lux
Oracle Certified Master (OCM)
Oracle ACE Member
Chairman of LuxOUG
Board Member at GUOB
Contacts
mufalani@gmail.com
Twitter.com/mufalani
https://www.linkedin.com/in/mufalani/

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AGENDA
History
Basics
Loop structures
Conditional structures
Functions
Demos
7

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DISCLAIMER
“The postings on this document are my own and don’t necessarily represent my
actual employer positions, strategies or opinions. The information here was edited to
be useful for general purpose, specific data and identifications were removed to
allow reach the generic audience and to be useful for the community.”

9. 9
HISTORY

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HISTORY
Bourne Shell - (sh) - /bin/sh
First appeared 7th Ed. of Bell Labs Research version of Unix

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HISTORY
C Shell - (csh) - /bin/csh
Delivered on BSD systems first available on 4.4 BSD
Used by C programmers (Similar sintax)

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HISTORY
Kourn Shell - (ksh)
Shipped with comercial Unixes (AIX, HP-UX and Solaris)
It was not free (later became open-source)
http://www.kornshell.com/

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HISTORY
Bourne Again Shell - (bash) - /bin/bash
Linux systems
chsh –s <shell> <username>
https://www.gnu.org/software/bash/

14. 14
BASICS

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BASICS

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BASICS

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BASICS

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BASICS

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BASICS

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BASICS

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BASICS

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BASICS

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24. 24
LOOP STRUCTURES

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LOOP STRUCTURES

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LOOP STRUCTURES

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LOOP STRUCTURES

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LOOP STRUCTURES

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LOOP STRUCTURES

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LOOP STRUCTURES

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32. 32
CONDITIONAL STRUCTURES

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CONDITIONAL STRUCTURES

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CONDITIONAL STRUCTURES
https://ryanstutorials.net/bash-scripting-tutorial/bash-if-statements.php

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CONDITIONAL STRUCTURES

36. 36
FUNCTIONS

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FUNCTIONS

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FUNCTIONS
https://www.shellscript.sh/functions.html

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