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Thanks for all,
What i need is "why".

Hi,
My example is:

int a = 12;
char *str;
str = malloc(2*sizeof(char));
read(0,str,a);
printf("%s %d",str,strlen(str));

if you run the program and type: "0123456789012" means 12...

Hi all,
I got trouble with reading and writing ( to standard input/output, file, socket whatever...).
I will briefly describe it by giving this example. I want to read a long string from keyboard...