Problem
1. A file may have more than one vnode table in memory. True or false?
2 Write a program that uses write to output the message hello dolly to the standard error. Manipulate the file descriptors so that this message can be saved by using a.out > foo rather than a.out 2>foo.
3. Why can't a background process be terminated with the interrupt key?
4. Use the kill command to find the number of signals available on your system and then write a program that ignores all of them. Is it possible to do so?
5. Explain why a pipe can connect two related processes only.