FILE OPEN READ

filem=fopen("deneme.txt","r")
if filem<0
    fprintf("file could not opened..");

else
    while feof(filem)==0
       t=fgetl(filem);
        fprintf("%s\n",t);
    end
end
z=fclose(filem);
if z==0
   fprintf("end of the program");
else
    fprintf("an error just accured while closing the file")
end
fprintf("spesifik veriyi almak için tekrar çalıştırıyoruz\n");
newfilem=fopen("numm.txt","r");
a=1;
while a~=0
    if str2num(newfilem(a))==5
       fprintf("başarılı, %d",a)
       a=0;
    end
end

fclose(newfilem);