#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[]){
	FILE *f,*f1;
	char c;
	if(argc<3){
		printf("Nije dobar broj argumenata\n");
		exit(EXIT_FAILURE);
	}
	f = fopen(argv[1],"r");
	f1 = fopen(argv[2],"w");
	if(f==NULL || f1==NULL){
		printf("Otvaranje datoteke nije uspelo.\n");
		exit(EXIT_FAILURE);
	}
	while((c=getc(f))!=EOF){
		if(argc==4){
			if(strcmp("-l",argv[3])==0)
				putc(tolower(c),f1);
			else if(strcmp("-u",argv[3])==0)
				putc(toupper(c),f1);
		}else{
			printf("usao u granu\n");
			putc(c,f1);
		}
	}
	fclose(f);
	fclose(f1);
}