PROGRAMMING on the LINUX LAB machines

author: Jeffrey Horn

Language: C++

Platform: UNIX (Linux) (UNIX TUTORIAL)

basic unix commands (mapped to dos commands)

LINUX: Remember to use ".cc" for your file extensions, and use the "g++" compiler script.

Here is Randy's "mini-guide" to Linux.

USING LINUX:

TELNET:

Start up Telnet on a PC, Mac, ThinkPad, or whatever,
then open a connection to euclid.nmu.edu (or cs.nmu.edu or math.nmu.edu).
Then login.

VNC: (virtual network computer)

First get the software:

Here is some additional info for our lab.

GETTING FILES TO YOUR ACCOUNT:

Two methods:

Copy and Paste With Browser:

Point your browser at the code files in http://euclid.nmu.edu/~jeffhorn/Classes/CS222/Fal11999/HW3" or whatever URL, then (using Windows or Mac's OS copy and paste facilities) grab the source code, open a text file with some editor (e.g., pico) and paste it in. Save the file with the appropriate file name. TIME COMSUMING IF YOU HAVE MANY FILES! (although size is no big thing).
youUse the unix command.

Use the Unix Copy Command as in "cp source destination". For example, to get all of the files for a particular assignment:

First create your own subdirectory in your home directory, as in

bpitts> mkdir HW3

Then cd to HW3:

bpitts> cd HW3

Then copy:

bpitts> cp ~jeffhorn/pub/Classes/CS222/Fall1999/HW3/* .

Note that in the above command, there are two arguments to the cp command, (1) the source, which is "~jeffhorn/pub/Classes/CS222/Fall1999/HW3/*" , and the destination, which is "."
The source is an entire path name, including "~jeffhorn", which is just short for "the homedirectory of user jeffhorn", and the wildcard character "*" which means all files (and subdirectories, if any) in the "HW3" subdir. Note that in the destination argument above (namely "."), the "." is a pointer to the current directory, which happens to be "~bpitts/HW3" because that is where we cd'd to.

SAMPLE CODE: To try out your C++ development environment (Turbo C++, gcc, g++, or whatever), you can try compiling and running the these little programs: sphere.cc or shapes.cc. I believe that all you need for these to run is the "iostream.h" header file, which should be available to your development environment. Try it!

COMPILING:

Use the built-in GNU C++ compiler, by typing "g++" at the command line prompt.
Complete syntax:

g++ main.cc

This will produce a bunch of compiler errors (usual) right aback at you, or (eventually!) no compilation errors, in which case a new file, called "al.out" be default, will appear in your current directory (the one you were in when you ran "g++"!).
Run your executable by typing "a.out" at the command line, or, if you get "command not found", try "./a.out" to FORCE unix to look in your current directory (which is".") to find a command (or executable, which is all a unix command really is!) named "a.out"
If you prefer a different name for executable (e.g., one more meaningful!), try

bpitts> g++ main.cc -o myCoolProg

or simply rename "a.out" anytime, with the unix MOVE command: bpitts> mv a.out myCoolProg

LINKS

(UNIX TUTORIAL)
Terry's C++ Primer for Java Programmers