Difference between revisions of "Tutorial 10 - Shell Scripting - Part 1"

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Content under construction
 
Content under construction
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= INTRODUCTION TO SHELL SCRIPTING =
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===Main Objectives of this Practice Tutorial===
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:* Plan and create a Shell Script
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:* Explain the purpose of the '''she-bang line''' contained at the top of a shell script.
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:* Set '''permissions''' and '''execute''' shell scripts.
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:* Use '''environment''' and '''user-defined''' variables in shell scripts.
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:* Use '''Command Substitution''' and '''Math Operations''' in shell scripts
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:* Explain the purpose of the '''$?''' exit status and the '''test''' command.
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:* Use '''if''' and '''if-else''' logic statements in shell scripts.
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:* Use a '''for''' loop statement with a list in shell scripts.
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===Tutorial Reference Material===
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{|width="100%" cellspacing="0" cellpadding="10"
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|- valign="top"
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|colspan="2" style="font-size:16px;font-weight:bold;border-bottom: thin solid black;border-spacing:0px;"|Course Notes<br>
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|colspan="2" style="font-size:16px;font-weight:bold;border-bottom: thin solid black;border-spacing:0px;padding-left:15px;"|Linux Command/Shortcut Reference<br>
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|colspan="1" style="font-size:16px;font-weight:bold;border-bottom: thin solid black;border-spacing:0px;padding-left:15px;"|YouTube Videos<br>
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|- valign="top" style="padding-left:15px;"
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|colspan="2" |Course Notes:<ul><li>[https://matrix.senecacollege.ca/~osl640/slides/OSL640-Week10.pdf PDF] | [https://matrix.senecacollege.ca/~osl640/slides/OSL640-Week10.pptx PPTX]</li></ul>
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|  style="padding-left:15px;" |Shell Scripting
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* [https://searchdatacenter.techtarget.com/definition/shell-script Purpose]
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Variables
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* [https://opensource.com/article/19/8/what-are-environment-variables Environment]
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* [https://www.linuxtechi.com/variables-in-shell-scripting/#:~:text=User%20Defined%20Variables%3A,like%20a%20real%20computer%20program. User Defined]
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* [http://osr600doc.xinuos.com/en/SDK_tools/_Positional_Parameters.html#:~:text=A%20positional%20parameter%20is%20a,up%20to%20nine%20positional%20parameters. Positional Parameters]
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Commands / Techniques
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* [http://linuxcommand.org/lc3_man_pages/readh.html read]
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* [https://man7.org/linux/man-pages/man1/readonly.1p.html readonly]
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* [https://www.gnu.org/software/bash/manual/html_node/Command-Substitution.html Command Substitution]
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|  style="padding-left:15px;"|Control Flow Statements
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* [https://en.wikipedia.org/wiki/Control_flow Purpose]
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* [https://www.computerhope.com/unix/test.htm test command]
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* [https://ryanstutorials.net/bash-scripting-tutorial/bash-if-statements.php#:~:text=If%20statements%20(and%2C%20closely%20related,conditions%20that%20we%20may%20set. if statement]
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* [https://www.tutorialspoint.com/unix/if-else-statement.htm if-else statement]
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* [https://www.cyberciti.biz/faq/bash-for-loop/#:~:text=A%20'for%20loop'%20is%20a,files%20using%20a%20for%20loop. for loop]
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|colspan="1" style="padding-left:15px;" width="30%"|Instructional Videos:<ul><li>[https://www.youtube.com/watch?v=kxEP-KUhOSg&list=PLU1b1f-2Oe90TuYfifnWulINjMv_Wr16N&index=5 Bash Shell Scripting - Part 1]</li><li>[https://www.youtube.com/watch?v=cQepf9fY6cE Creating and Running a Shell Script]</li></ul>
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|}
  
 
= INVESTIGATION 1: CREATING A SHELL SCRIPT =
 
= INVESTIGATION 1: CREATING A SHELL SCRIPT =

Revision as of 13:33, 14 November 2021

Content under construction

INTRODUCTION TO SHELL SCRIPTING

Main Objectives of this Practice Tutorial

  • Plan and create a Shell Script
  • Explain the purpose of the she-bang line contained at the top of a shell script.
  • Set permissions and execute shell scripts.
  • Use environment and user-defined variables in shell scripts.
  • Use Command Substitution and Math Operations in shell scripts
  • Explain the purpose of the $? exit status and the test command.
  • Use if and if-else logic statements in shell scripts.
  • Use a for loop statement with a list in shell scripts.

Tutorial Reference Material

Course Notes
 Linux Command/Shortcut Reference
 YouTube Videos
Course Notes:


Shell Scripting

Variables

Commands / Techniques

Control Flow Statements Instructional Videos:

INVESTIGATION 1: CREATING A SHELL SCRIPT

INVESTIGATION 2: USING VARIABLES IN SHELL SCRIPTS

INVESTIGATION 3: COMMAND SUBSTITUTION / MATH OPERATIONS

INVESTIGATION 4: USING CONTROL FLOW STATEMENTS IN SHELL SCRIPTS

LINUX PRACTICE QUESTIONS

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