IT 116: Introduction to Scripting - Class 16 Exercise

IT 116: Introduction to Scripting
Class 16 Exercise

Log in to users3

Run an SSH client
Run putty.exe if you have a PC or Terminal if you have a Mac.

Create a directory for this exercise

Go to your home directory
```
cd
```
Go to your it116 directory
```
cd  it116
```
Go to your ex directory
```
cd ex
```
Make sure you are in your ex directory
```
pwd
```
If you are not in /home/UNIX_ID/it116/ex, see me.
Create a directory for this exercise
```
mkdir  ex16
```
Check that the directory was created
```
ls
```
Go to this new directory
```
cd ex16
```

Practice in interactive mode

Enter Python interactive mode
```
python3
```

Create the function circle_area

>>> def circle_area(radius):
...     return math.pi * radius ** 2
...
>>> area = circle_area(5)
>>> area

The value of area should be 78.53981633974483.

Use this function in a boolean expression
```
 circle_area(6) > circle_area(7.5)
```
Quit interactive mode

Control D

Script for this Exercise

Create the script ex16.py
```
nano  ex16.py
```
Enter the following text into the script file

Run this script
```
python3  ex16.py
```

You should see something like this

Please enter a score: 80
Score: 80    B-
First number: 35
Second number: 6
6 does not evenly divide 35
First name: Glenn
Last name: Hoffman
Hello Glenn Hoffman

The text in blue is entered by the user

Running my test script on your script

If you want to run my text script on your Class Exercise script do the following
Run ex16.sh on your script
```
~ghoffman/it116_test/ex16.sh
```
The script will prompt you for your Unix username.