IT 116: Introduction to Scripting

IT 116: Introduction to Scripting
Class 8 Exercise

Practice in interactive mode

Run Idle on your machine
```
python3
```

Practice with logical operators

>>> 4 < 8 and 8 < 80
>>> 4 > 8 or 8 < 80
>>> not True
>>> not False

Write an if statement that checks the range of a variable

>>> age = 25
>>> if 16 <= age <= 65:
...    print("Your age is in the right range")
... else:
...    print("Your age is in the wrong range")
...

Write some boolean expressions

>>> 16 <= age  and  age <= 65
>>> 16 <= age <= 65

Set some boolean variables

>>> minor = age < 10
>>> minor
>>> senior = age > 65
>>> senior

Script for this exercise

Open a text editor
A program like Sublime.
Do not use Word or Notepad.
Copy the text below into the file

Save the file as ex8.py
Run this script in IDLE
Open the script file in IDLE. Under the Run menu, select Run Module.

You should see

4 < 8 and 8 < 80: True
4 > 8 or 8 < 80: True
not True: False
not False: True

num_1 < num_2 and num_3 <= num_4: True
num_1 < num_2 or num_3 > num_4: True
num_2 == num_2 and num_3 != num_3: False
num_2 == num_2 or num_3 != num_3: True

Unix Setup

Log in to users3.cs.umb.edu
You will be in your home directory.
Go to your it116 directory
```
cd it116
```
Go to your ex directory
```
cd ex
```
Create a directory for this exercise
```
mkdir  ex8
```
Check that the directory was created
```
ls
```

Copy the file to Unix

Open FileZilla and connect to users3.cs.umb.edu
You will have to connect using your Unix username and password.
Copy the file to the to it116/ex/ex8

Testing the script on Unix

Connect to users3.cs.umb.edu
Use an ssh client.
Go to the directory for this exercise
```
cd  it116/ex/ex8
```
Run this script
```
python3 ex8.py
```

You should see

4 < 8 and 8 < 80: True
4 > 8 or 8 < 80: True
not True: False
not False: True

num_1 < num_2 and num_3 <= num_4: True
num_1 < num_2 or num_3 > num_4: True
num_2 == num_2 and num_3 != num_3: False
num_2 == num_2 or num_3 != num_3: True

Running my test script on your script

If you want to run my text script on your Class Exercise script do the following
Run ex08.sh on your script
```
~ghoffman/it116_test/ex08.sh
```
The script will prompt you for your Unix username.