IT 116: Introduction to Scripting - Class 2 Exercise

IT 116: Introduction to Scripting
Class 2 Exercise

Practice with interactive mode

Run IDLE on your machine
Use the help() function
```
>>> help("topics")
```
Use this function to learn more about assignment in Python
```
>>> help("ASSIGNMENT")
```
Advance through this help entry

Keep hitting Space until you get to the end.
Quit this help entry

Type q to quit.
Create some variables
```
>>> a = 5
>>> b = 6
>>> c = 10
```
Check the values you have just entered
```
>>> a
>>> b
>>> c
```

Perform some arithmetic

>>> a + b + c
>>> a * b + c
>>> a * b * c
>>> a * b / c

Print some phrases

>>> print("Hello world!")
>>> print("Go Red Sox!")

Script for this exercise

Open a text editor
You can use the editor built into IDLE or use a program like Sublime.
Enter the text below
```
print("Hello world!")
```
Save the file as ex2.py
Run the script
In the Run menu select Run Module
You should see
```
Hello world!
```

Unix setup

Log in to users3.cs.umb.edu
You will be in your home directory.
Go to your it116 directory
```
cd it116
```
Create ex and hw directories
```
mkdir ex hw
```
Check that the directories were created
```
ls
```
Go to your ex directory
```
cd ex
```
Create a directory for this exercise
```
mkdir  ex2
```
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/ex2

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/ex2
```
Run this script
```
python3 ex2.py
```
You should see
```
Hello world!
```

Running my test script on your script

If you want to run my text script on your Class Exercise script do the following
Run ex02.sh on your script
```
~ghoffman/it116_test/ex02.sh
```
The script will prompt you for your Unix username.