IT 117: Intermediate Scripting

IT 117: Intermediate to Scripting
Class 12 Exercise

Script for this exercise

Open a text editor
You can use the editor built into IDLE or use a program like Sublime.
Copy the text below into the file

Save the file as ex12.py
Copy the file apache_log.txt from /home/ghoffman/course_files/it117_files
Use FileZilla to do this.
Run this script in IDLE
Open the script file in IDLE. Under the Run menu, select Run Module.

You should see something like

199.21.99.114
108.121.132.248
108.121.132.248
151.203.239.216
82.193.99.33
82.193.99.33
82.193.99.33
108.121.132.248
183.60.213.106
199.21.99.114
regular expression: (\d\d\d)
matches: 123456789
returns: 123
regular expression: (\d{5})
matches: 123456789
returns: 12345
regular expression: (\w{6})
matches: 123456789
returns: 123456
regular expression: (\w{6})
matches: abcdefghijk
returns: abcdef
regular expression: \d+(\d\s{4}\w{2})
matches: 12345    abcdefghijk
returns: 5    ab
regular expression: .*(b{3})
matches: ---bbbbbbbbb---
returns: bbb
regular expression: \D*(\d{2,5})
matches: ---12---------
returns: 12
regular expression: \D*(\d{2,5})
matches: ---12345---------
returns: 12345
regular expression: ([abc]{2})
matches: bcaewrosdf
returns: bc
regular expression: \W*([a-d]+)
matches: ---------bacdnmonpn--------
returns: bacd
regular expression: <td>(.*?)</td>
matches: <td>Class 4</td> <td>February 6th</td>
returns: Class 4

Unix setup

Log in to users3.cs.umb.edu
You will be in your home directory.
Go to your it117 directory
```
cd it117
```
Go to your ex directory
```
cd ex
```
Create a directory for this exercise
```
mkdir  ex12
```
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 it117/ex/ex12

Testing the script on Unix

Connect to users3.cs.umb.edu
Use an ssh client.
Go to the directory for this exercise
```
cd  it117/ex/ex12
```
Make this script executable
```
chmod  755 ex12.py
```
Copy the file apache_log.txt from /home/ghoffman/course_files/it117_files
```
cp  /home/ghoffman/course_files/it117_files/apache_log.txt  .
```
Run this script
```
./ex12.py
```

You should see

199.21.99.114
108.121.132.248
108.121.132.248
151.203.239.216
82.193.99.33
82.193.99.33
82.193.99.33
108.121.132.248
183.60.213.106
199.21.99.114
regular expression: (\d\d\d)
matches: 123456789
returns: 123
regular expression: (\d{5})
matches: 123456789
returns: 12345
regular expression: (\w{6})
matches: 123456789
returns: 123456
regular expression: (\w{6})
matches: abcdefghijk
returns: abcdef
regular expression: \d+(\d\s{4}\w{2})
matches: 12345    abcdefghijk
returns: 5    ab
regular expression: .*(b{3})
matches: ---bbbbbbbbb---
returns: bbb
regular expression: \D*(\d{2,5})
matches: ---12---------
returns: 12
regular expression: \D*(\d{2,5})
matches: ---12345---------
returns: 12345
regular expression: ([abc]{2})
matches: bcaewrosdf
returns: bc
regular expression: \W*([a-d]+)
matches: ---------bacdnmonpn--------
returns: bacd
regular expression: <td>(.*?)</td>
matches: <td>Class 4</td> <td>February 6th</td>
returns: Class 4