Assignment 2

This homework is worth 10 points.

When you finish this assignment you should be able to:

• Log into the Department's linux machines.
• Copy files from your instructor's directory.
• Edit and compile programs.
• Email source code to your instructor.

1. Log onto your account on one of the the Department's linux machines.
2. Copy the source code for this program from your instructor's directory to your directory
   • Issue the command cp ~dbennett/130/homework2.C .
   • 
     • cp is the copy command
     • ~dbennett/130/homework2.C is the name of the file you are copying.
       • ~dbennett/130 is the path to the file
       • homework2.C is the actual file name
     • There is a dot (.) at the end of the above command
       • This is the filename you want to copy the file to.
       • It could be any name, for example myHomework2.C.
       • But in this case, the . means keep the same name.
     • So this command will copy a file into your directory called homework2.C
     • Typing ls will show the names of all the files in your home directory.
3. Edit the file
   • add a comment at the top to include your name.
   • Add another message to the user at the end of the program.
   • Depending on where you are use joe, pico, kate or some other editor.
4. Compile this program
   • This assumes that you have not renamed the program.
   • g++ -o homework2 homework2.C
     • g++ is the gnu c++ compiler.
     • -o homework2 says name the output homework2
     • homework2.C says to compile the code in the file homework2.C
   • There are two possible results
     1. The program compiles.
        • 
        • The syntax was correct, so move on to the next step.
     2. The program has syntax errors.
        • 
        • In this case, there were syntax errors.
          • Near line 23 something went went wrong.
          • There is possibly a problem near line 24 as well
          • These were due to a missing ; on line 20
          • 
        • You will need to fix any syntax errors and recompile.
          • This might be a problem right now, get help
            • Me
            • A tutor
            • Someone else in the lab.
        • Note, not all syntax errors will produce the same messages.
5. Check to see that your program, and executable are in your directory
   • ls
   • 
   • you can get more information by typing ls -l
6. Run your program.
   • ./homework2
   • You should be prompted for your name
   • If you see the following you failed to compile your program, go back to step 4
   • 
7. Send an email message to your instructor
   • The subject should be CSCI 130 Homework2
   • The body should contain a friendly greeting and a statement that homework 2 is attached.
   • Attach the file homework2.C
   • DO NOT attach the file homework2