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C Programming: sizeof variable types...

As you know C programming language has different variable types and each of them use different byte size. Do you wonder how to find size of each variable type in C? Look at the program below. Program: int main() {   printf("sizeof(char) == %d\n", sizeof(char));   printf("sizeof(short) == %d\n", sizeof(short));   printf("sizeof(int)...
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Linux: fork() system call with an example...

fork() creates a child process that differs from the parent process only in its PID and PPID, and in the fact that resource utilizations are set to 0. File locks and pending signals are not inherited. Under Linux, fork() is implemented using copy-on-write pages, so the only penalty that it incurs is the time and memory required to duplicate the parent’s page tables, and to create a unique task structure for the child. RETURN...
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