For now, it's not important to understand all those cryptic C commands. All that matters is that minutes from now, you will have learnt how to create a program in C, compile it and run it. Then you can act all smug in front of your mates ;)
1. At the command line, pick a directory to save you program and enter:
VIM firstprog.c
2. Enter the following program (See 'How to Access Your MS-DOS Floppy', for instructions on using VIM):
include <stdio.h>
int main()
{
int index;
for (index = 0; index < 7; index = index + 1)
printf ("Hello World!\n");
return 0;
}
3. Save your program and exit VIM.
4. Enter the following to create an executable (a program that can be run) from your source code (firstprog.c):
gcc -o myprog firstprog.c
5. To run you program, enter the following:
./myprog
./ means run a file located in the current directory.
You could quite easily have entered something like:
/home/Laurence/myprog
...If that happened to be the directory 'myprog' was in.
Laurence Hunter
thebits@thebits.co.uk