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UNIX cat like utility

UNIX cat like utility

#include<stdio.h>
#include<string.h>
#include<conio.h>

int main(int argc,char* argv[]){
        FILE* fp;
        int i=0;
        char c;
        if(argc==1){
                fprintf(stderr,"Error using cat...
");
                exit(2);
        }
        if(!strcmp(argv[1],"-w")){  /* This returns 1 if match is found */

                if(argc!=3){
                        fprintf(stderr,"Invalid no. of arguments
");
                        exit(2);
                }
                fp=fopen(argv[2],"w");
                if(fp==NULL)
                {
                        fprintf(stderr,"Error in opening file...
");
                        exit(2);
                }
                c=getchar();
                while(c!=EOF)
                {
                        fputc(c,fp);
                        c=getchar();
                }
                fclose(fp);
        }
        else{
        for(--argc;argc>0;argc--){
                 fp=fopen(argv[++i],"r");
                 if(fp==NULL){
                        fprintf(stderr,"File not found...Aborting
");
                        exit(2);
                 }
                 while((c=fgetc(fp))!=EOF)
                        fputc(c,stdout);
                 fclose(fp);
        }
        }

}
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