yihangho's questions

I just switched from Windows to Ubuntu 11.10.

I wrote the following code in C with the text editor and saved it as HelloWorld.c in Documents.

#include <stdio.h>
int main()
{
    printf("Hello World!\n");
    return 0;
}

And I started the Terminal and enter the following commands:

cd Documents

gcc HelloWorld.c

A file called a.out, which, after some search on Google, is the executable. I entered this command:

a.out

But I get

a.out: command not found

Which step did I do wrongly?