C Program to Copy Contents From One File to Another

#include <stdio.h>
main()
{
    FILE *fp1, *fp2;
    char ch;
    fp1 = fopen("abc.txt", "r");
    fp2 = fopen("xyz.txt", "w");
    while((ch = getc(fp1)) != EOF)
        putc(ch, fp2);
    fclose(fp1);
    fclose(fp2);
}

 OUTPUT:

STEP 1: Create a New Text Document and Rename it as "abc.txt"

STEP 2: Write Some Content in that file and Save.

STEP 3: Now Compile the C Program and RUN it.

That's it. 

Now a new file will be created with a name "xyz.c" and all the content would copy from abc.txt to xyz.txt.