Lecture Notes

In order to access CMP computers from outside UIUC campus, you need to install UIUC Vitual Provate Network (VPN)
In order to use DISSCO, you also need to install XQuartz on your computer/laptop.

Linux

• Linux/Computers I

     Loggin in remotely to CMP computers:
          For mac users, login through XQuartz (X11), which should be
          installed already and can be found in application -> utility.
          This app functions exactly as a terminal and let you see the
          graphic interface. Open it.
  
          Type " ssh -Y netid@X.music.illinois.edu" where X equals any
          computer name in CMP.
  
          For windows users, two links that are helpful for getting a
          XQuartz-like terminal:
                  http://x.cygwin.com/
                  https://sourceforge.net/projects/xming/
          Open it. Type " ssh -Y netid@X.music.illinois.edu" where X
          equals any computer name in CMP.
  
     VPN,ssh command, getting a terminal
  
     GUI on Windows computers  guide
  
     Directories, files and permissions
  	Directories (aka folders) are arranged in a tree structure
  	starting with the root /; your home directory is /home/netID
  
  	sever-tipeis-macbook-pro:DISSCO severtipei$ ls -l
  	total 8
  	drwxr-xr-x  3 severtipei  staff  102 Jun 16  2010 CMOD
  	-rw-r--r--  1 severtipei  staff  126 Mar 16  2014 Comments
  
     Transfering files between CMP computers and your own computer:
          sftp netid@X.music.illinois.edu
     Transfering files between CMP computers and your own computer:
          sftp netid@X.music.illinois.edu
          password
            get filename (should you wish to get your file)
            put filename (should you wish to put in your file)
  		Linux commands such as ls, rm, cd (path), are available.
  		When preceede by "l" (ex. lls) they refer to your local computer
          bye
  

• Linux/Computers II

C++

   To compile and run a program:
        g++ filename.cpp
        ./a.out
   or
        g++ -o exec filename.cpp
        ./exec

• simple.cpp (odt), #include, main, return 0, cout.
• sum.cpp (odt), cout, cin, addition
• average.cpp (odt), float, arrays
• forecast.cpp (odt), rand, ctime, if statements, char

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