Write a ‘C’ program to copy content of one file into another file using command line argument

#include<stdio.h>
#include<conio.h>
main(int argc,char *argv[])
{
FILE *fp1,*fp2;
char ch;
clrscr();
if(argc!=3)
{
printf("\n insufficient argument ");
exit(0);
}
fp1=fopen(argv[1],"r");
fp2=fopen(argv[2],"w");
if(fp1==NULL || fp2==NULL)
{
printf("\n unable to open file ");
exit(0);
}
while(!feof(fp1))
{
ch=fgetc(fp1);
fputc(ch,fp2);
}
printf("\n file successfully copied ");
fclose(fp1);
fclose(fp2);
getch();
}