MacResearch

hi-

Launch Terminal application and type:

man gcc
man make

if you can compile and link your app to a runnable binary then type:

cd to_directory_of_your_program
./name_of_my_program

and your program will respond to stdin and stdout, the two standard input and output streams for unix. So, you type input which goes to your program using stdin (fscanf(stdin, format, &args)) and issue output to stdout (fprintf(stdout, format, args...) )

If you want, make new Terminal windows and repeat to run multiple copies of your app one one computer.

or use ./name_of_my_program < input_file &

(or something similar).

You can run things on the command line, even if it is a standard .app wrapper.
For example

cd /Applications/TextEdit.app/Contents/MacOS/
./TextEdit

will launch TexEdit, you get all of the NSLog output (and stderr, stdout as well) on the command line. Windows will pop up. There isn't anything stopping you from doing text input through stdin. You will need to manually send display messages to NSView objects if you don't have a run loop.

If you are using the AppKit, you need a bundle, but you can create a pure command line Foundation tool.

David

In XCode when making a new project you choose the "C++ tool" from "Command line utility"
I have several programs this way that work just fine from the terminal with interaction with gnuplot.
You just have to locate the unix executable in the build folders inside the project folder. (usually build/Debug)
Sometimes it works even ONLY in terminal since your programs might depend on some environment variables such as the PATH variable that looks where gnuplot might be located. These are not set when using the XCode console.

Willem