This simple program is to copy the standard input to the standard output. It's one of the first I/O-related programs that a student writes.
1 /************************************************
2 * copy -- Copy stdin to stdout. *
3 ************************************************/
4 #include <stdio.h>
5
6 int main()
7 {
8 // Character to copy
9 char ch;
10
11 while ((ch = getchar()) != EOF)
12 {
13 putchar(ch);
14 }
15 return (0);
16 }