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Tutorial12: Shell Scripting - Part 2

1,494 bytes added, 09:45, 28 July 2020

→‎INVESTIGATION 1: ADDITIONAL LOGIC STATEMENTS

# Issue the following linux command to add execute permissions for your shell script: chmod u+x if-3.bash

# Run your shell script by issuing: ./if-3.bash

# x What do you notice? Try running the script several times with numbers different and equal to each other to confirm that the shell script works correctly. It would be nice to have a separate result of the numbers are equal to each other. In order to achieve this, you can use an if-elif-else statement. # Use a text editor like vi or nano to create the text file called '''if-4.bash''' (eg. vi if-4.bash) If you are using the nano text editor, refer to notes on text editing in a previous week in the course schedule. # Enter the following lines in your shell script: #!/bin/bash clear read -p "Enter the first number: " num1 read -p "Enter the second number: " num2 if [ $num1 -gt $num2 ] then    echo "The first number is greater than the second number." else    echo "The first number is less than or equal to the second number." fi # Save your editing session and exit the text editor (eg. with vi: press '''ESC''', then type ''':wx''' followed by '''ENTER'''). # Issue the following linux command to add execute permissions for your shell script: chmod u+x if-4.bash # Run your shell script by issuing: ./if-4.bash

In the next investigation, you will ...

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Tutorial12: Shell Scripting - Part 2

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