CMSC131 Spring 2005

Quiz #7: Take home exercise

Due May 6, 6:00pm

This is a CLOSED assignment.

This quiz is a take-home exercise. The objective is to practice Unix commands and to run Eclipse in a Unix environment. Keep in mind that Eclipse only runs on glue machines running the Solaris operating system. One lab with machines you can use is AVW 1442. You should complete this exercise using a Sun machine available in these labs. Make sure you start this exercise as soon as possible, as the labs get busy as the deadline approaches. You must abide by the guidelines defined in the closed homework policy: http://www.cs.umd.edu/class/spring2005/cmsc131/openClosedPolicy.shtml

For the questions below, you will be experimenting with Unix. Open two windows on your computer. In one window you will create a file (using the pico editor) named answers.txt. In this file you will cut and paste the results of commands we will ask you to execute. In the second window, you will execute commands. Make sure that you numbered your answers in the answers.txt file.

1. A directory in the glue system named /users/nelsonp/pub/quiz7Files has a file called personalInfo.txt. Copy this file to a directory named myWork in your glue home directory and edit the file with your personal information. You may need to change the permissions of the personalInfo.txt file before editing it.

2. Once you have edited the personalInfo.txt execute the command

ls -al myWork

and cut and paste the results to the answers.txt file. The answers.txt file must be in your home directory and not in the myWork directory.

3. Go to your glue home directory and execute the command

ls –F

Write down in your answers.txt file the names of directories present in your home directory.

4. Execute the command

pwd

and write the result in your answers.txt file.

5. Copy the directory quiz7Files (and its contents) into the directory myWork. Write down the command you use to copy the directory in your answers.txt file.

6. Rename the quiz7Files directory to quiz7FilesOriginal and execute the command

ls -Ral myWork

Cut and paste the results of the above command in your answers.txt file.

7. Using the pico editor, write a java program (in the directory myWork) that prints (using System.out.println) your name and section. Compile your program using javac and run your program using java. Named your file myProgram.java . In the directory where your program resides, execute the command

ls –al

and cut and paste the results in your answers.txt file.

8. Execute the following two commands and cut and paste the results in your answers.txt file.

date

who

9. Go to the directory myWork and cut and paste the results of executing the following commands

cd . (cd followed by a period)

ls

10. Go to the directory myWork and cut and paste the results of executing the following commands

cd .. (cd followed by two periods)

ls

11. Using ssh log onto your wam account and create a file named myPersonalInfoWam.txt which has a list of the courses you taking this semester.

12. Using scp transfer the file myPersonalInfoWam.txt from your wam account to your myWork directory in your glue account.

13. Rename the file myPersonalInfoWam.txt to myPersonalInfoSCP.txt

14. Transfer the file myPersonalInfoWam.txt from your wam account a second time but using ftp instead of scp. Leave the myPersonaInfoWam.txt file in the directory myWork.

15. In your glue account, launch eclipse following the instructions available in the Eclipse tutorial section titled “To launch Eclipse on Solaris Machines”

16. Connect to your cvs repository and checkout the project quiz7. Edit PUPIL_COLOR constant in the JavaEyes.java file so the color of the pupil is red (Color.red). Run the program to make sure your change is correct.

17. Import your answers.txt file into your quiz7 project.

18. Create a jar file with the contents of your myWork directory. For example, the following command could be used to create this jar file:

jar cvf toSubmit.jar myWork

19. Import the previous jar file (toSubmit.jar) into your quiz7 project.

20. Submit your quiz7 project using the Submit project option. The submit server considers quiz7 as Project#9, so don’t be surprised if you see this number in several messages used by the submit server. Make sure that you download your submission from the submit server and then verify the submission has all the expected files. We have not set any submit server tests for the quiz therefore it is your responsibility to make sure all the expected files are submitted.